542206361 has 4 divisors (see below), whose sum is σ = 542532900. Its totient is φ = 541879824.

The previous prime is 542206333. The next prime is 542206367. The reversal of 542206361 is 163602245.

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 397244761 + 144961600 = 19931^2 + 12040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542206361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542206367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160766 + ... + 164103.

It is an arithmetic number, because the mean of its divisors is an integer number (135633225).

Almost surely, 2^542206361 is an apocalyptic number.

It is an amenable number.

542206361 is a deficient number, since it is larger than the sum of its proper divisors (326539).

542206361 is a wasteful number, since it uses less digits than its factorization.

542206361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326538.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 542206361 is about 23285.3250138365. The cubic root of 542206361 is about 815.4328492240.

The spelling of 542206361 in words is "five hundred forty-two million, two hundred six thousand, three hundred sixty-one".