115390000 has 100 divisors (see below), whose sum is σ = 305058600. Its totient is φ = 41920000.

The previous prime is 115389959. The next prime is 115390001. The reversal of 115390000 is 93511.

It is a tau number, because it is divible by the number of its divisors (100).

It is a self number, because there is not a number n which added to its sum of digits gives 115390000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115390001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109476 + ... + 110524.

It is an arithmetic number, because the mean of its divisors is an integer number (3050586).

Almost surely, 2^115390000 is an apocalyptic number.

115390000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115390000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152529300).

115390000 is an abundant number, since it is smaller than the sum of its proper divisors (189668600).

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

115390000 is a wasteful number, since it uses less digits than its factorization.

115390000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 115390000 is about 10741.9737478733. The cubic root of 115390000 is about 486.8435169695.

It can be divided in two parts, 11 and 5390000, that multiplied together give a square (59290000 = 7700²).

The spelling of 115390000 in words is "one hundred fifteen million, three hundred ninety thousand".