612536222 has 4 divisors (see below), whose sum is σ = 918804336. Its totient is φ = 306268110.

The previous prime is 612536213. The next prime is 612536227. The reversal of 612536222 is 222635216.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612536227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153134054 + ... + 153134057.

It is an arithmetic number, because the mean of its divisors is an integer number (229701084).

Almost surely, 2^612536222 is an apocalyptic number.

612536222 is a deficient number, since it is larger than the sum of its proper divisors (306268114).

612536222 is a wasteful number, since it uses less digits than its factorization.

612536222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306268113.

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

The square root of 612536222 is about 24749.4691256196. The cubic root of 612536222 is about 849.2663667541.

The spelling of 612536222 in words is "six hundred twelve million, five hundred thirty-six thousand, two hundred twenty-two".