1156164 has 48 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 357280.

The previous prime is 1156157. The next prime is 1156171. The reversal of 1156164 is 4616511.

1156164 = T₁₄₂ + T₁₄₃ + ... + T₂₁₃.

It is an interprime number because it is at equal distance from previous prime (1156157) and next prime (1156171).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16249 + ... + 16319.

It is an arithmetic number, because the mean of its divisors is an integer number (60480).

2^1156164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451520).

1156164 is an abundant number, since it is smaller than the sum of its proper divisors (1746876).

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

1156164 is a wasteful number, since it uses less digits than its factorization.

1156164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 158 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 1156164 is about 1075.2506684490. The cubic root of 1156164 is about 104.9558090685.

The spelling of 1156164 in words is "one million, one hundred fifty-six thousand, one hundred sixty-four".