15143040 has 192 divisors, whose sum is σ = 57283200. Its totient is φ = 3655680.

The previous prime is 15143033. The next prime is 15143041. The reversal of 15143040 is 4034151.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (15143041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63241 + ... + 63479.

It is an arithmetic number, because the mean of its divisors is an integer number (298350).

Almost surely, 2^15143040 is an apocalyptic number.

15143040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28641600).

15143040 is an abundant number, since it is smaller than the sum of its proper divisors (42140160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15143040 is a wasteful number, since it uses less digits than its factorization.

15143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 15143040 is about 3891.4059156043. The cubic root of 15143040 is about 247.4026553209.

Adding to 15143040 its reverse (4034151), we get a palindrome (19177191).

Subtracting from 15143040 its reverse (4034151), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1514 and 3040, that added together give a palindrome (4554).

The spelling of 15143040 in words is "fifteen million, one hundred forty-three thousand, forty".