115224001 has 4 divisors (see below), whose sum is σ = 115245504. Its totient is φ = 115202500.

The previous prime is 115223963. The next prime is 115224013. The reversal of 115224001 is 100422511.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115224001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115224041) 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, 4476 + ... + 15826.

It is an arithmetic number, because the mean of its divisors is an integer number (28811376).

Almost surely, 2^115224001 is an apocalyptic number.

115224001 is the 4801-st centered decagonal number.

It is an amenable number.

115224001 is a deficient number, since it is larger than the sum of its proper divisors (21503).

115224001 is a wasteful number, since it uses less digits than its factorization.

115224001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21502.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 115224001 is about 10734.2443143428. The cubic root of 115224001 is about 486.6099487184.

Adding to 115224001 its reverse (100422511), we get a palindrome (215646512).

The spelling of 115224001 in words is "one hundred fifteen million, two hundred twenty-four thousand, one".