15149238 has 32 divisors (see below), whose sum is σ = 32852736. Its totient is φ = 4629408.

The previous prime is 15149231. The next prime is 15149257. The reversal of 15149238 is 83294151.

It is a junction number, because it is equal to n+sod(n) for n = 15149199 and 15149208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15149231) by changing a digit.

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, 12445 + ... + 13607.

It is an arithmetic number, because the mean of its divisors is an integer number (1026648).

Almost surely, 2^15149238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15149238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16426368).

15149238 is an abundant number, since it is smaller than the sum of its proper divisors (17703498).

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

15149238 is a wasteful number, since it uses less digits than its factorization.

15149238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348.

The product of its digits is 8640, while the sum is 33.

The square root of 15149238 is about 3892.2022044082. The cubic root of 15149238 is about 247.4364044338.

The spelling of 15149238 in words is "fifteen million, one hundred forty-nine thousand, two hundred thirty-eight".