115801528 has 8 divisors (see below), whose sum is σ = 217127880. Its totient is φ = 57900760.

The previous prime is 115801513. The next prime is 115801531. The reversal of 115801528 is 825108511.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 115801528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7237588 + ... + 7237603.

It is an arithmetic number, because the mean of its divisors is an integer number (27140985).

Almost surely, 2^115801528 is an apocalyptic number.

It is an amenable number.

115801528 is a deficient number, since it is larger than the sum of its proper divisors (101326352).

115801528 is a wasteful number, since it uses less digits than its factorization.

115801528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14475197 (or 14475193 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 31.

The square root of 115801528 is about 10761.1118384673. Note that the first 3 decimals coincide. The cubic root of 115801528 is about 487.4215914220.

The spelling of 115801528 in words is "one hundred fifteen million, eight hundred one thousand, five hundred twenty-eight".