115125643 has 4 divisors (see below), whose sum is σ = 116144568. Its totient is φ = 114106720.

The previous prime is 115125623. The next prime is 115125653. The reversal of 115125643 is 346521511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346521511 = 7 ⋅49503073.

It is a cyclic number.

It is not a de Polignac number, because 115125643 - 2¹³ = 115117451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115125623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509293 + ... + 509518.

It is an arithmetic number, because the mean of its divisors is an integer number (29036142).

Almost surely, 2^115125643 is an apocalyptic number.

115125643 is a deficient number, since it is larger than the sum of its proper divisors (1018925).

115125643 is a wasteful number, since it uses less digits than its factorization.

115125643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018924.

The product of its digits is 3600, while the sum is 28.

The square root of 115125643 is about 10729.6618306450. The cubic root of 115125643 is about 486.4714486198.

The spelling of 115125643 in words is "one hundred fifteen million, one hundred twenty-five thousand, six hundred forty-three".