1115431 has 4 divisors (see below), whose sum is σ = 1163952. Its totient is φ = 1066912.

The previous prime is 1115419. The next prime is 1115447. The reversal of 1115431 is 1345111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1345111 = 61 ⋅22051.

It is a cyclic number.

It is not a de Polignac number, because 1115431 - 2⁵ = 1115399 is a prime.

It is a super-2 number, since 2×1115431² = 2488372631522, 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 (1115131) 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, 24226 + ... + 24271.

It is an arithmetic number, because the mean of its divisors is an integer number (290988).

2^1115431 is an apocalyptic number.

1115431 is a deficient number, since it is larger than the sum of its proper divisors (48521).

1115431 is an equidigital number, since it uses as much as digits as its factorization.

1115431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48520.

The product of its digits is 60, while the sum is 16.

The square root of 1115431 is about 1056.1396687939. The cubic root of 1115431 is about 103.7084722754.

The spelling of 1115431 in words is "one million, one hundred fifteen thousand, four hundred thirty-one".