1157162013 has 48 divisors (see below), whose sum is σ = 1985832576. Its totient is φ = 635506560.

The previous prime is 1157161981. The next prime is 1157162029. The reversal of 1157162013 is 3102617511.

It is not a de Polignac number, because 1157162013 - 2⁵ = 1157161981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157162033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190483 + ... + 196463.

It is an arithmetic number, because the mean of its divisors is an integer number (41371512).

Almost surely, 2^1157162013 is an apocalyptic number.

It is an amenable number.

1157162013 is a deficient number, since it is larger than the sum of its proper divisors (828670563).

1157162013 is a wasteful number, since it uses less digits than its factorization.

1157162013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114 (or 6111 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1157162013 is about 34017.0841342993. The cubic root of 1157162013 is about 1049.8600003819.

Adding to 1157162013 its reverse (3102617511), we get a palindrome (4259779524).

The spelling of 1157162013 in words is "one billion, one hundred fifty-seven million, one hundred sixty-two thousand, thirteen".