1056138 has 8 divisors (see below), whose sum is σ = 2112288. Its totient is φ = 352044.

The previous prime is 1056113. The next prime is 1056149. The reversal of 1056138 is 8316501.

It is a sphenic number, since it is the product of 3 distinct primes.

1056138 is an admirable number.

It is a super-2 number, since 2×1056138² = 2230854950088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 88006 + ... + 88017.

It is an arithmetic number, because the mean of its divisors is an integer number (264036).

2^1056138 is an apocalyptic number.

1056138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1056138 is a wasteful number, since it uses less digits than its factorization.

1056138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176028.

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

The square root of 1056138 is about 1027.6857496336. The cubic root of 1056138 is about 101.8373031014.

The spelling of 1056138 in words is "one million, fifty-six thousand, one hundred thirty-eight".