542610645 has 16 divisors (see below), whose sum is σ = 913871040. Its totient is φ = 274161024.

The previous prime is 542610643. The next prime is 542610647. The reversal of 542610645 is 546016245.

It is an interprime number because it is at equal distance from previous prime (542610643) and next prime (542610647).

It is not a de Polignac number, because 542610645 - 2¹ = 542610643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542610643) 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, 951664 + ... + 952233.

It is an arithmetic number, because the mean of its divisors is an integer number (57116940).

Almost surely, 2^542610645 is an apocalyptic number.

It is an amenable number.

542610645 is a deficient number, since it is larger than the sum of its proper divisors (371260395).

542610645 is a wasteful number, since it uses less digits than its factorization.

542610645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903924.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 542610645 is about 23294.0044861333. The cubic root of 542610645 is about 815.6354686051.

The spelling of 542610645 in words is "five hundred forty-two million, six hundred ten thousand, six hundred forty-five".