1156164404 has 6 divisors (see below), whose sum is σ = 2023287714. Its totient is φ = 578082200.

The previous prime is 1156164367. The next prime is 1156164409. The reversal of 1156164404 is 4044616511.

It can be written as a sum of positive squares in only one way, i.e., 987216400 + 168948004 = 31420^2 + 12998^2 .

It is a super-2 number, since 2×1156164404² = 2673432258153350432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156164409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144520547 + ... + 144520554.

It is an arithmetic number, because the mean of its divisors is an integer number (337214619).

Almost surely, 2^1156164404 is an apocalyptic number.

It is an amenable number.

1156164404 is a deficient number, since it is larger than the sum of its proper divisors (867123310).

1156164404 is a wasteful number, since it uses less digits than its factorization.

1156164404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289041105 (or 289041103 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1156164404 is about 34002.4176199281. The cubic root of 1156164404 is about 1049.5582129350.

The spelling of 1156164404 in words is "one billion, one hundred fifty-six million, one hundred sixty-four thousand, four hundred four".