1156506 has 16 divisors (see below), whose sum is σ = 2491104. Its totient is φ = 355824.

The previous prime is 1156501. The next prime is 1156523. The reversal of 1156506 is 6056511.

It is a super-2 number, since 2×1156506² = 2675012256072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1156501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7336 + ... + 7491.

It is an arithmetic number, because the mean of its divisors is an integer number (155694).

2^1156506 is an apocalyptic number.

1156506 is an abundant number, since it is smaller than the sum of its proper divisors (1334598).

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

1156506 is a wasteful number, since it uses less digits than its factorization.

1156506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14845.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1156506 is about 1075.4096893742. The cubic root of 1156506 is about 104.9661568935.

The spelling of 1156506 in words is "one million, one hundred fifty-six thousand, five hundred six".