115211553 has 8 divisors (see below), whose sum is σ = 155466528. Its totient is φ = 75882144.

The previous prime is 115211549. The next prime is 115211557. The reversal of 115211553 is 355112511.

It is an interprime number because it is at equal distance from previous prime (115211549) and next prime (115211557).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115211553 - 2² = 115211549 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115211557) by changing a digit.

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, 231100 + ... + 231597.

It is an arithmetic number, because the mean of its divisors is an integer number (19433316).

Almost surely, 2^115211553 is an apocalyptic number.

It is an amenable number.

115211553 is a deficient number, since it is larger than the sum of its proper divisors (40254975).

115211553 is an equidigital number, since it uses as much as digits as its factorization.

115211553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462783.

The product of its digits is 750, while the sum is 24.

The square root of 115211553 is about 10733.6644721176. The cubic root of 115211553 is about 486.5924247687.

The spelling of 115211553 in words is "one hundred fifteen million, two hundred eleven thousand, five hundred fifty-three".