115541402 has 16 divisors (see below), whose sum is σ = 180921600. Its totient is φ = 55276320.

The previous prime is 115541359. The next prime is 115541441. The reversal of 115541402 is 204145511.

It is a super-2 number, since 2×115541402² = 26699631152251208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4952 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (11307600).

Almost surely, 2^115541402 is an apocalyptic number.

115541402 is a deficient number, since it is larger than the sum of its proper divisors (65380198).

115541402 is a wasteful number, since it uses less digits than its factorization.

115541402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21061.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 115541402 is about 10749.0186528818. The cubic root of 115541402 is about 487.0563513226.

Adding to 115541402 its reverse (204145511), we get a palindrome (319686913).

It can be divided in two parts, 1155 and 41402, that multiplied together give a triangular number (47819310 = T₉₇₇₉).

The spelling of 115541402 in words is "one hundred fifteen million, five hundred forty-one thousand, four hundred two".