542423461 has 4 divisors (see below), whose sum is σ = 559921024. Its totient is φ = 524925900.

The previous prime is 542423443. The next prime is 542423489. The reversal of 542423461 is 164324245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 164324245 = 5 ⋅32864849.

It is a cyclic number.

It is not a de Polignac number, because 542423461 - 2⁷ = 542423333 is a prime.

It is a super-2 number, since 2×542423461² = 588446422086437042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 17497531 = 542423461 / (5 + 4 + 2 + 4 + 2 + 3 + 4 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542423411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8748735 + ... + 8748796.

It is an arithmetic number, because the mean of its divisors is an integer number (139980256).

Almost surely, 2^542423461 is an apocalyptic number.

It is an amenable number.

542423461 is a deficient number, since it is larger than the sum of its proper divisors (17497563).

542423461 is a wasteful number, since it uses less digits than its factorization.

542423461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17497562.

The product of its digits is 23040, while the sum is 31.

The square root of 542423461 is about 23289.9862816619. The cubic root of 542423461 is about 815.5416680931.

The spelling of 542423461 in words is "five hundred forty-two million, four hundred twenty-three thousand, four hundred sixty-one".