1162157764 has 6 divisors (see below), whose sum is σ = 2033776094. Its totient is φ = 581078880.

The previous prime is 1162157747. The next prime is 1162157771. The reversal of 1162157764 is 4677512611.

It can be written as a sum of positive squares in only one way, i.e., 1033108164 + 129049600 = 32142^2 + 11360^2 .

It is a super-2 number, since 2×1162157764² = 2701221336850959392, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 145269717 + ... + 145269724.

Almost surely, 2^1162157764 is an apocalyptic number.

It is an amenable number.

1162157764 is a deficient number, since it is larger than the sum of its proper divisors (871618330).

1162157764 is a wasteful number, since it uses less digits than its factorization.

1162157764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290539445 (or 290539443 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 1162157764 is about 34090.4350808258. The cubic root of 1162157764 is about 1051.3686653710.

The spelling of 1162157764 in words is "one billion, one hundred sixty-two million, one hundred fifty-seven thousand, seven hundred sixty-four".