542212045 has 4 divisors (see below), whose sum is σ = 650654460. Its totient is φ = 433769632.

The previous prime is 542212037. The next prime is 542212057. The reversal of 542212045 is 540212245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54597321 + 487614724 = 7389^2 + 22082^2 .

It is a cyclic number.

It is not a de Polignac number, because 542212045 - 2³ = 542212037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54221200 + ... + 54221209.

It is an arithmetic number, because the mean of its divisors is an integer number (162663615).

Almost surely, 2^542212045 is an apocalyptic number.

It is an amenable number.

542212045 is a deficient number, since it is larger than the sum of its proper divisors (108442415).

542212045 is a wasteful number, since it uses less digits than its factorization.

542212045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108442414.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 542212045 is about 23285.4470646367. The cubic root of 542212045 is about 815.4356986337.

The spelling of 542212045 in words is "five hundred forty-two million, two hundred twelve thousand, forty-five".