1157382077 has 8 divisors (see below), whose sum is σ = 1186425720. Its totient is φ = 1128695040.

The previous prime is 1157382067. The next prime is 1157382091. The reversal of 1157382077 is 7702837511.

It can be written as a sum of positive squares in 4 ways, for example, as 350026681 + 807355396 = 18709^2 + 28414^2 .

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 1157382077 - 2¹⁶ = 1157316541 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 (1157382067) 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, 82574 + ... + 95567.

It is an arithmetic number, because the mean of its divisors is an integer number (148303215).

Almost surely, 2^1157382077 is an apocalyptic number.

It is an amenable number.

1157382077 is a deficient number, since it is larger than the sum of its proper divisors (29043643).

1157382077 is an equidigital number, since it uses as much as digits as its factorization.

1157382077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178303.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 1157382077 is about 34020.3185905129. The cubic root of 1157382077 is about 1049.9265487546.

The spelling of 1157382077 in words is "one billion, one hundred fifty-seven million, three hundred eighty-two thousand, seventy-seven".