1071131957 has 8 divisors (see below), whose sum is σ = 1224392832. Its totient is φ = 917931600.

The previous prime is 1071131947. The next prime is 1071131969. The reversal of 1071131957 is 7591311701.

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

It is a cyclic number.

It is not a de Polignac number, because 1071131957 - 2²² = 1066937653 is a prime.

It is a super-2 number, since 2×1071131957² = 2294647338613299698, 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 (1071131947) 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, 33032 + ... + 56862.

It is an arithmetic number, because the mean of its divisors is an integer number (153049104).

Almost surely, 2^1071131957 is an apocalyptic number.

It is an amenable number.

1071131957 is a deficient number, since it is larger than the sum of its proper divisors (153260875).

1071131957 is an equidigital number, since it uses as much as digits as its factorization.

1071131957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30259.

The product of its (nonzero) digits is 6615, while the sum is 35.

The square root of 1071131957 is about 32728.1523615373. The cubic root of 1071131957 is about 1023.1696725214.

The spelling of 1071131957 in words is "one billion, seventy-one million, one hundred thirty-one thousand, nine hundred fifty-seven".