611313771 has 16 divisors (see below), whose sum is σ = 868851200. Its totient is φ = 381202848.

The previous prime is 611313743. The next prime is 611313779. The reversal of 611313771 is 177313116.

It is not a de Polignac number, because 611313771 - 2⁵ = 611313739 is a prime.

It is a super-2 number, since 2×611313771² = 747409053228480882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611313779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63376 + ... + 72381.

It is an arithmetic number, because the mean of its divisors is an integer number (54303200).

Almost surely, 2^611313771 is an apocalyptic number.

611313771 is a deficient number, since it is larger than the sum of its proper divisors (257537429).

611313771 is a wasteful number, since it uses less digits than its factorization.

611313771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135858.

The product of its digits is 2646, while the sum is 30.

The square root of 611313771 is about 24724.7602819522. The cubic root of 611313771 is about 848.7010244435.

Adding to 611313771 its reverse (177313116), we get a palindrome (788626887).

The spelling of 611313771 in words is "six hundred eleven million, three hundred thirteen thousand, seven hundred seventy-one".