542154531 has 32 divisors (see below), whose sum is σ = 809395200. Its totient is φ = 320785920.

The previous prime is 542154517. The next prime is 542154533. The reversal of 542154531 is 135451245.

It is not a de Polignac number, because 542154531 - 2¹⁴ = 542138147 is a prime.

It is a super-2 number, since 2×542154531² = 587863070967659922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (542154533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230421 + ... + 232761.

It is an arithmetic number, because the mean of its divisors is an integer number (25293600).

Almost surely, 2^542154531 is an apocalyptic number.

542154531 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

542154531 is a deficient number, since it is larger than the sum of its proper divisors (267240669).

542154531 is a wasteful number, since it uses less digits than its factorization.

542154531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619.

The product of its digits is 12000, while the sum is 30.

The square root of 542154531 is about 23284.2120545231. The cubic root of 542154531 is about 815.4068657398.

The spelling of 542154531 in words is "five hundred forty-two million, one hundred fifty-four thousand, five hundred thirty-one".