612136712 has 16 divisors (see below), whose sum is σ = 1252098000. Its totient is φ = 278243920.

The previous prime is 612136711. The next prime is 612136747. The reversal of 612136712 is 217631216.

It is a super-2 number, since 2×612136712² = 749422708356341888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612136711) 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, 3477962 + ... + 3478137.

It is an arithmetic number, because the mean of its divisors is an integer number (78256125).

Almost surely, 2^612136712 is an apocalyptic number.

It is an amenable number.

612136712 is an abundant number, since it is smaller than the sum of its proper divisors (639961288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612136712 is a wasteful number, since it uses less digits than its factorization.

612136712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6956116 (or 6956112 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 612136712 is about 24741.3967269433. The cubic root of 612136712 is about 849.0816896771.

Adding to 612136712 its reverse (217631216), we get a palindrome (829767928).

The spelling of 612136712 in words is "six hundred twelve million, one hundred thirty-six thousand, seven hundred twelve".