542155812 has 48 divisors (see below), whose sum is σ = 1427630400. Its totient is φ = 158623360.

The previous prime is 542155811. The next prime is 542155813. The reversal of 542155812 is 218551245.

It is an interprime number because it is at equal distance from previous prime (542155811) and next prime (542155813).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (542155811) 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, 66987 + ... + 74642.

It is an arithmetic number, because the mean of its divisors is an integer number (29742300).

Almost surely, 2^542155812 is an apocalyptic number.

It is an amenable number.

542155812 is an abundant number, since it is smaller than the sum of its proper divisors (885474588).

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

542155812 is a wasteful number, since it uses less digits than its factorization.

542155812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141676 (or 141674 counting only the distinct ones).

The product of its digits is 16000, while the sum is 33.

The square root of 542155812 is about 23284.2395624165. The cubic root of 542155812 is about 815.4075079524.

The spelling of 542155812 in words is "five hundred forty-two million, one hundred fifty-five thousand, eight hundred twelve".