163542140 has 24 divisors (see below), whose sum is σ = 350747712. Its totient is φ = 64024640.

The previous prime is 163542131. The next prime is 163542151. The reversal of 163542140 is 41245361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86051 + ... + 87930.

It is an arithmetic number, because the mean of its divisors is an integer number (14614488).

Almost surely, 2^163542140 is an apocalyptic number.

163542140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163542140 is an abundant number, since it is smaller than the sum of its proper divisors (187205572).

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

163542140 is a wasteful number, since it uses less digits than its factorization.

163542140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174037 (or 174035 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 163542140 is about 12788.3595507790. The cubic root of 163542140 is about 546.8605044974.

The spelling of 163542140 in words is "one hundred sixty-three million, five hundred forty-two thousand, one hundred forty".