1157455279 has 8 divisors (see below), whose sum is σ = 1202343120. Its totient is φ = 1112899200.

The previous prime is 1157455261. The next prime is 1157455283. The reversal of 1157455279 is 9725547511.

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 1157455279 - 2¹³ = 1157447087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157455259) 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, 75817 + ... + 89794.

It is an arithmetic number, because the mean of its divisors is an integer number (150292890).

Almost surely, 2^1157455279 is an apocalyptic number.

1157455279 is a deficient number, since it is larger than the sum of its proper divisors (44887841).

1157455279 is a wasteful number, since it uses less digits than its factorization.

1157455279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165881.

The product of its digits is 441000, while the sum is 46.

The square root of 1157455279 is about 34021.3944305638. The cubic root of 1157455279 is about 1049.9486835087.

The spelling of 1157455279 in words is "one billion, one hundred fifty-seven million, four hundred fifty-five thousand, two hundred seventy-nine".