15142332 has 12 divisors (see below), whose sum is σ = 35332136. Its totient is φ = 5047440.

The previous prime is 15142327. The next prime is 15142367. The reversal of 15142332 is 23324151.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 15142299 and 15142308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630919 + ... + 630942.

Almost surely, 2^15142332 is an apocalyptic number.

15142332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15142332 is an abundant number, since it is smaller than the sum of its proper divisors (20189804).

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

15142332 is a wasteful number, since it uses less digits than its factorization.

15142332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261868 (or 1261866 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 15142332 is about 3891.3149448483. The cubic root of 15142332 is about 247.3987995603.

Adding to 15142332 its reverse (23324151), we get a palindrome (38466483).

The spelling of 15142332 in words is "fifteen million, one hundred forty-two thousand, three hundred thirty-two".