118171542 has 32 divisors (see below), whose sum is σ = 239477472. Its totient is φ = 38872064.

The previous prime is 118171541. The next prime is 118171567. The reversal of 118171542 is 245171811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118171541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191218 + ... + 191834.

It is an arithmetic number, because the mean of its divisors is an integer number (7483671).

Almost surely, 2^118171542 is an apocalyptic number.

118171542 is an abundant number, since it is smaller than the sum of its proper divisors (121305930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118171542 is a wasteful number, since it uses less digits than its factorization.

118171542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its digits is 2240, while the sum is 30.

The square root of 118171542 is about 10870.6734841959. The cubic root of 118171542 is about 490.7243791115.

The spelling of 118171542 in words is "one hundred eighteen million, one hundred seventy-one thousand, five hundred forty-two".