612961272 has 96 divisors (see below), whose sum is σ = 2069758080. Its totient is φ = 159209280.

The previous prime is 612961241. The next prime is 612961291. The reversal of 612961272 is 272169216.

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

It is a nude number because it is divisible by every one of its digits.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49738 + ... + 60825.

It is an arithmetic number, because the mean of its divisors is an integer number (21559980).

Almost surely, 2^612961272 is an apocalyptic number.

It is an amenable number.

612961272 is an abundant number, since it is smaller than the sum of its proper divisors (1456796808).

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

612961272 is a wasteful number, since it uses less digits than its factorization.

612961272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110593 (or 110586 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 612961272 is about 24758.0546893329. The cubic root of 612961272 is about 849.4627617816.

The spelling of 612961272 in words is "six hundred twelve million, nine hundred sixty-one thousand, two hundred seventy-two".