115861801 has 4 divisors (see below), whose sum is σ = 126394704. Its totient is φ = 105328900.

The previous prime is 115861793. The next prime is 115861819. The reversal of 115861801 is 108168511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115861801 - 2³ = 115861793 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115861831) 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, 5266435 + ... + 5266456.

It is an arithmetic number, because the mean of its divisors is an integer number (31598676).

Almost surely, 2^115861801 is an apocalyptic number.

115861801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115861801 is a deficient number, since it is larger than the sum of its proper divisors (10532903).

115861801 is a wasteful number, since it uses less digits than its factorization.

115861801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10532902.

The product of its (nonzero) digits is 1920, while the sum is 31.

The square root of 115861801 is about 10763.9119747423. The cubic root of 115861801 is about 487.5061420221.

The spelling of 115861801 in words is "one hundred fifteen million, eight hundred sixty-one thousand, eight hundred one".