1056155 has 4 divisors (see below), whose sum is σ = 1267392. Its totient is φ = 844920.

The previous prime is 1056149. The next prime is 1056161. The reversal of 1056155 is 5516501.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1056149) and next prime (1056161).

It is not a de Polignac number, because 1056155 - 2¹⁸ = 794011 is a prime.

It is a super-2 number, since 2×1056155² = 2230926768050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105611 + ... + 105620.

It is an arithmetic number, because the mean of its divisors is an integer number (316848).

2^1056155 is an apocalyptic number.

1056155 is a deficient number, since it is larger than the sum of its proper divisors (211237).

1056155 is an equidigital number, since it uses as much as digits as its factorization.

1056155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211236.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1056155 is about 1027.6940206112. The cubic root of 1056155 is about 101.8378495025.

It can be divided in two parts, 10 and 56155, that added together give a palindrome (56165).

The spelling of 1056155 in words is "one million, fifty-six thousand, one hundred fifty-five".