1157617271 has 8 divisors (see below), whose sum is σ = 1173118464. Its totient is φ = 1142203000.

The previous prime is 1157617267. The next prime is 1157617327. The reversal of 1157617271 is 1727167511.

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 1157617271 - 2² = 1157617267 is a prime.

It is a super-2 number, since 2×1157617271² = 2680155492234974882, 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 (1157610271) 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, 5306 + ... + 48408.

It is an arithmetic number, because the mean of its divisors is an integer number (146639808).

Almost surely, 2^1157617271 is an apocalyptic number.

1157617271 is a deficient number, since it is larger than the sum of its proper divisors (15501193).

1157617271 is a wasteful number, since it uses less digits than its factorization.

1157617271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43461.

The product of its digits is 20580, while the sum is 38.

The square root of 1157617271 is about 34023.7750844906. The cubic root of 1157617271 is about 1049.9976631845.

The spelling of 1157617271 in words is "one billion, one hundred fifty-seven million, six hundred seventeen thousand, two hundred seventy-one".