542956161 has 16 divisors (see below), whose sum is σ = 796287168. Its totient is φ = 329061920.

The previous prime is 542956121. The next prime is 542956171. The reversal of 542956161 is 161659245.

It is not a de Polignac number, because 542956161 - 2⁷ = 542956033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542956121) 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, 63996 + ... + 71981.

It is an arithmetic number, because the mean of its divisors is an integer number (49767948).

Almost surely, 2^542956161 is an apocalyptic number.

It is an amenable number.

542956161 is a deficient number, since it is larger than the sum of its proper divisors (253331007).

542956161 is a wasteful number, since it uses less digits than its factorization.

542956161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136013 (or 135991 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 542956161 is about 23301.4197206951. The cubic root of 542956161 is about 815.8085548451.

The spelling of 542956161 in words is "five hundred forty-two million, nine hundred fifty-six thousand, one hundred sixty-one".