612761256 has 48 divisors (see below), whose sum is σ = 1687701600. Its totient is φ = 200790432.

The previous prime is 612761251. The next prime is 612761263. The reversal of 612761256 is 652167216.

It is a happy number.

612761256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 612761256.

It is not an unprimeable number, because it can be changed into a prime (612761251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67876 + ... + 76371.

It is an arithmetic number, because the mean of its divisors is an integer number (35160450).

Almost surely, 2^612761256 is an apocalyptic number.

It is an amenable number.

612761256 is an abundant number, since it is smaller than the sum of its proper divisors (1074940344).

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

612761256 is a wasteful number, since it uses less digits than its factorization.

612761256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144318 (or 144311 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 612761256 is about 24754.0149470747. The cubic root of 612761256 is about 849.3703553846.

The spelling of 612761256 in words is "six hundred twelve million, seven hundred sixty-one thousand, two hundred fifty-six".