1317957 has 16 divisors (see below), whose sum is σ = 1827840. Its totient is φ = 844272.

The previous prime is 1317947. The next prime is 1317961. The reversal of 1317957 is 7597131.

1317957 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 1317957 - 2⁴ = 1317941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15838 + ... + 15920.

It is an arithmetic number, because the mean of its divisors is an integer number (114240).

2^1317957 is an apocalyptic number.

It is an amenable number.

1317957 is a deficient number, since it is larger than the sum of its proper divisors (509883).

1317957 is an equidigital number, since it uses as much as digits as its factorization.

1317957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232.

The product of its digits is 6615, while the sum is 33.

The square root of 1317957 is about 1148.0230833916. The cubic root of 1317957 is about 109.6395085953.

The spelling of 1317957 in words is "one million, three hundred seventeen thousand, nine hundred fifty-seven".