1157031 has 8 divisors (see below), whose sum is σ = 1714160. Its totient is φ = 771336.

The previous prime is 1157017. The next prime is 1157033. The reversal of 1157031 is 1307511.

It is a happy number.

It is not a de Polignac number, because 1157031 - 2¹³ = 1148839 is a prime.

It is a super-2 number, since 2×1157031² = 2677441469922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1156995 and 1157013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157033) 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, 21400 + ... + 21453.

It is an arithmetic number, because the mean of its divisors is an integer number (214270).

2^1157031 is an apocalyptic number.

1157031 is a deficient number, since it is larger than the sum of its proper divisors (557129).

1157031 is an equidigital number, since it uses as much as digits as its factorization.

1157031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42862 (or 42856 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 1157031 is about 1075.6537546999. The cubic root of 1157031 is about 104.9820377437.

The spelling of 1157031 in words is "one million, one hundred fifty-seven thousand, thirty-one".