1056157 has 4 divisors (see below), whose sum is σ = 1066716. Its totient is φ = 1045600.

The previous prime is 1056149. The next prime is 1056161. The reversal of 1056157 is 7516501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7516501 = 919 ⋅8179.

It can be written as a sum of positive squares in 2 ways, for example, as 988036 + 68121 = 994^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056157 - 2³ = 1056149 is a prime.

It is a super-2 number, since 2×1056157² = 2230935217298, which contains 22 as substring.

It is a Duffinian number.

1056157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5128 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (266679).

2^1056157 is an apocalyptic number.

It is an amenable number.

1056157 is a deficient number, since it is larger than the sum of its proper divisors (10559).

1056157 is a wasteful number, since it uses less digits than its factorization.

1056157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10558.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 1056157 is about 1027.6949936630. The cubic root of 1056157 is about 101.8379137846.

The spelling of 1056157 in words is "one million, fifty-six thousand, one hundred fifty-seven".