115263540 has 96 divisors (see below), whose sum is σ = 409839360. Its totient is φ = 26345088.

The previous prime is 115263527. The next prime is 115263583. The reversal of 115263540 is 45362511.

115263540 is a `hidden beast` number, since 11 + 52 + 63 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11467 + ... + 19026.

It is an arithmetic number, because the mean of its divisors is an integer number (4269160).

Almost surely, 2^115263540 is an apocalyptic number.

115263540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115263540 is an abundant number, since it is smaller than the sum of its proper divisors (294575820).

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

115263540 is a wasteful number, since it uses less digits than its factorization.

115263540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30518 (or 30510 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 115263540 is about 10736.0858789412. The cubic root of 115263540 is about 486.6656022578.

The spelling of 115263540 in words is "one hundred fifteen million, two hundred sixty-three thousand, five hundred forty".