611261272 has 8 divisors (see below), whose sum is σ = 1146114900. Its totient is φ = 305630632.

The previous prime is 611261239. The next prime is 611261279. The reversal of 611261272 is 272162116.

611261272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 611261272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611261279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38203822 + ... + 38203837.

Almost surely, 2^611261272 is an apocalyptic number.

It is an amenable number.

611261272 is a deficient number, since it is larger than the sum of its proper divisors (534853628).

611261272 is a wasteful number, since it uses less digits than its factorization.

611261272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76407665 (or 76407661 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 611261272 is about 24723.6985906235. The cubic root of 611261272 is about 848.6767285566.

The spelling of 611261272 in words is "six hundred eleven million, two hundred sixty-one thousand, two hundred seventy-two".