1171084957 has 12 divisors (see below), whose sum is σ = 1362857916. Its totient is φ = 1003363200.

The previous prime is 1171084909. The next prime is 1171084987. The reversal of 1171084957 is 7594801711.

It can be written as a sum of positive squares in 2 ways, for example, as 453434436 + 717650521 = 21294^2 + 26789^2 .

It is not a de Polignac number, because 1171084957 - 2⁷ = 1171084829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171084987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182707 + ... + 189007.

It is an arithmetic number, because the mean of its divisors is an integer number (113571493).

Almost surely, 2^1171084957 is an apocalyptic number.

It is an amenable number.

1171084957 is a deficient number, since it is larger than the sum of its proper divisors (191772959).

1171084957 is an equidigital number, since it uses as much as digits as its factorization.

1171084957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10108 (or 10101 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 43.

The square root of 1171084957 is about 34221.1185819517. The cubic root of 1171084957 is about 1054.0538546056.

The spelling of 1171084957 in words is "one billion, one hundred seventy-one million, eighty-four thousand, nine hundred fifty-seven".