6111631 has 4 divisors (see below), whose sum is σ = 6123352. Its totient is φ = 6099912.

The previous prime is 6111617. The next prime is 6111643. The reversal of 6111631 is 1361116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6111631 - 2⁷ = 6111503 is a prime.

It is a super-2 number, since 2×6111631² = 74704066960322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6111599 and 6111608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6111601) 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, 5040 + ... + 6133.

It is an arithmetic number, because the mean of its divisors is an integer number (1530838).

Almost surely, 2^6111631 is an apocalyptic number.

6111631 is a deficient number, since it is larger than the sum of its proper divisors (11721).

6111631 is a wasteful number, since it uses less digits than its factorization.

6111631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11720.

The product of its digits is 108, while the sum is 19.

The square root of 6111631 is about 2472.1713128341. The cubic root of 6111631 is about 182.8320694613.

Adding to 6111631 its reverse (1361116), we get a palindrome (7472747).

The spelling of 6111631 in words is "six million, one hundred eleven thousand, six hundred thirty-one".