115454542 has 16 divisors (see below), whose sum is σ = 198357120. Its totient is φ = 49371768.

The previous prime is 115454533. The next prime is 115454543. The reversal of 115454542 is 245454511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115454543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2292 + ... + 15367.

It is an arithmetic number, because the mean of its divisors is an integer number (12397320).

Almost surely, 2^115454542 is an apocalyptic number.

115454542 is a deficient number, since it is larger than the sum of its proper divisors (82902578).

115454542 is a wasteful number, since it uses less digits than its factorization.

115454542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18135.

The product of its digits is 16000, while the sum is 31.

The square root of 115454542 is about 10744.9775244065. The cubic root of 115454542 is about 486.9342700608.

Subtracting from 115454542 its sum of digits (31), we obtain a palindrome (115454511).

It can be divided in two parts, 1154 and 54542, that added together give a square (55696 = 236²).

The spelling of 115454542 in words is "one hundred fifteen million, four hundred fifty-four thousand, five hundred forty-two".