542123154 has 12 divisors (see below), whose sum is σ = 1174600206. Its totient is φ = 180707712.

The previous prime is 542123147. The next prime is 542123161. The reversal of 542123154 is 451321245.

542123154 is a `hidden beast` number, since 5 + 421 + 231 + 5 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (542123147) and next prime (542123161).

It can be written as a sum of positive squares in only one way, i.e., 446181129 + 95942025 = 21123^2 + 9795^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15058959 + ... + 15058994.

Almost surely, 2^542123154 is an apocalyptic number.

542123154 is an abundant number, since it is smaller than the sum of its proper divisors (632477052).

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

542123154 is a wasteful number, since it uses less digits than its factorization.

542123154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30117961 (or 30117958 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 542123154 is about 23283.5382620426. The cubic root of 542123154 is about 815.3911349758.

Adding to 542123154 its reverse (451321245), we get a palindrome (993444399).

The spelling of 542123154 in words is "five hundred forty-two million, one hundred twenty-three thousand, one hundred fifty-four".