115220156 has 24 divisors (see below), whose sum is σ = 213978240. Its totient is φ = 54168752.

The previous prime is 115220143. The next prime is 115220167. The reversal of 115220156 is 651022511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5186 + ... + 16041.

It is an arithmetic number, because the mean of its divisors is an integer number (8915760).

Almost surely, 2^115220156 is an apocalyptic number.

It is an amenable number.

115220156 is a deficient number, since it is larger than the sum of its proper divisors (98758084).

115220156 is a wasteful number, since it uses less digits than its factorization.

115220156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21313 (or 21311 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 115220156 is about 10734.0652131427. The cubic root of 115220156 is about 486.6045359686.

Adding to 115220156 its reverse (651022511), we get a palindrome (766242667).

The spelling of 115220156 in words is "one hundred fifteen million, two hundred twenty thousand, one hundred fifty-six".