115142643 has 24 divisors (see below), whose sum is σ = 207357696. Its totient is φ = 59814000.

The previous prime is 115142639. The next prime is 115142693. The reversal of 115142643 is 346241511.

It is a happy number.

115142643 is a `hidden beast` number, since 1 + 1 + 5 + 14 + 2 + 643 = 666.

It is not a de Polignac number, because 115142643 - 2² = 115142639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115142693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82383 + ... + 83768.

It is an arithmetic number, because the mean of its divisors is an integer number (8639904).

Almost surely, 2^115142643 is an apocalyptic number.

115142643 is a deficient number, since it is larger than the sum of its proper divisors (92215053).

115142643 is a wasteful number, since it uses less digits than its factorization.

115142643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166175 (or 166172 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 115142643 is about 10730.4539978512. The cubic root of 115142643 is about 486.4953923372.

The spelling of 115142643 in words is "one hundred fifteen million, one hundred forty-two thousand, six hundred forty-three".