1515265240 has 32 divisors (see below), whose sum is σ = 3415073760. Its totient is φ = 605088000.

The previous prime is 1515265237. The next prime is 1515265253. The reversal of 1515265240 is 425625151.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7476 + ... + 55555.

It is an arithmetic number, because the mean of its divisors is an integer number (106721055).

Almost surely, 2^1515265240 is an apocalyptic number.

1515265240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1515265240 is an abundant number, since it is smaller than the sum of its proper divisors (1899808520).

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

1515265240 is a wasteful number, since it uses less digits than its factorization.

1515265240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63643 (or 63639 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1515265240 is about 38926.4080027942. The cubic root of 1515265240 is about 1148.5843298340.

The spelling of 1515265240 in words is "one billion, five hundred fifteen million, two hundred sixty-five thousand, two hundred forty".