15159940 has 12 divisors (see below), whose sum is σ = 31835916. Its totient is φ = 6063968.

The previous prime is 15159931. The next prime is 15159943. The reversal of 15159940 is 4995151.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7750656 + 7409284 = 2784^2 + 2722^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15159896 and 15159905.

It is not an unprimeable number, because it can be changed into a prime (15159943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378979 + ... + 379018.

It is an arithmetic number, because the mean of its divisors is an integer number (2652993).

Almost surely, 2^15159940 is an apocalyptic number.

15159940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15159940 is an abundant number, since it is smaller than the sum of its proper divisors (16675976).

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

15159940 is a wasteful number, since it uses less digits than its factorization.

15159940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758006 (or 758004 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 15159940 is about 3893.5767617963. The cubic root of 15159940 is about 247.4946568924.

The spelling of 15159940 in words is "fifteen million, one hundred fifty-nine thousand, nine hundred forty".