1117631 has 8 divisors (see below), whose sum is σ = 1224720. Its totient is φ = 1015168.

The previous prime is 1117609. The next prime is 1117657. The reversal of 1117631 is 1367111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117631 is a prime.

It is a super-2 number, since 2×1117631² = 2498198104322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641 + ... + 1626.

It is an arithmetic number, because the mean of its divisors is an integer number (153090).

2^1117631 is an apocalyptic number.

1117631 is a deficient number, since it is larger than the sum of its proper divisors (107089).

1117631 is a wasteful number, since it uses less digits than its factorization.

1117631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313.

The product of its digits is 126, while the sum is 20.

The square root of 1117631 is about 1057.1806846514. The cubic root of 1117631 is about 103.7766100032.

The spelling of 1117631 in words is "one million, one hundred seventeen thousand, six hundred thirty-one".