145010640 has 80 divisors (see below), whose sum is σ = 453595968. Its totient is φ = 38320128.

The previous prime is 145010627. The next prime is 145010669. The reversal of 145010640 is 46010541.

145010640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24447 + ... + 29793.

Almost surely, 2^145010640 is an apocalyptic number.

145010640 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 145010640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226797984).

145010640 is an abundant number, since it is smaller than the sum of its proper divisors (308585328).

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

145010640 is a wasteful number, since it uses less digits than its factorization.

145010640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476 (or 5470 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 145010640 is about 12042.0363726406. The cubic root of 145010640 is about 525.3716370902.

Subtracting from 145010640 its reverse (46010541), we obtain a palindrome (99000099).

It can be divided in two parts, 1450 and 10640, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 145010640 in words is "one hundred forty-five million, ten thousand, six hundred forty".