542121545 has 24 divisors (see below), whose sum is σ = 762249600. Its totient is φ = 369042912.

The previous prime is 542121527. The next prime is 542121553. The reversal of 542121545 is 545121245.

It is not a de Polignac number, because 542121545 - 2⁸ = 542121289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26096 + ... + 42014.

It is an arithmetic number, because the mean of its divisors is an integer number (31760400).

Almost surely, 2^542121545 is an apocalyptic number.

It is an amenable number.

542121545 is a deficient number, since it is larger than the sum of its proper divisors (220128055).

542121545 is a wasteful number, since it uses less digits than its factorization.

542121545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16077 (or 16070 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 542121545 is about 23283.5037097083. The cubic root of 542121545 is about 815.3903282922.

The spelling of 542121545 in words is "five hundred forty-two million, one hundred twenty-one thousand, five hundred forty-five".