1157371146 has 64 divisors (see below), whose sum is σ = 2634508800. Its totient is φ = 376455168.

The previous prime is 1157371133. The next prime is 1157371147. The reversal of 1157371146 is 6411737511.

It is a happy number.

1157371146 is a `hidden beast` number, since 1 + 1 + 573 + 71 + 14 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157371146.

It is not an unprimeable number, because it can be changed into a prime (1157371147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1504650 + ... + 1505418.

It is an arithmetic number, because the mean of its divisors is an integer number (41164200).

Almost surely, 2^1157371146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1157371146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1317254400).

1157371146 is an abundant number, since it is smaller than the sum of its proper divisors (1477137654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1157371146 is a wasteful number, since it uses less digits than its factorization.

1157371146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420 (or 1414 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 1157371146 is about 34020.1579361413. The cubic root of 1157371146 is about 1049.9232433687.

The spelling of 1157371146 in words is "one billion, one hundred fifty-seven million, three hundred seventy-one thousand, one hundred forty-six".