1056616042 has 4 divisors (see below), whose sum is σ = 1584924066. Its totient is φ = 528308020.

The previous prime is 1056616037. The next prime is 1056616051. The reversal of 1056616042 is 2406166501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2406166501 = 659 ⋅3651239.

It can be written as a sum of positive squares in only one way, i.e., 769008361 + 287607681 = 27731^2 + 16959^2 .

It is a super-2 number, since 2×1056616042² = 2232874920423491528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1056615995 and 1056616013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264154009 + ... + 264154012.

Almost surely, 2^1056616042 is an apocalyptic number.

1056616042 is a deficient number, since it is larger than the sum of its proper divisors (528308024).

1056616042 is an equidigital number, since it uses as much as digits as its factorization.

1056616042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528308023.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1056616042 is about 32505.6309275793. The cubic root of 1056616042 is about 1018.5266572913.

The spelling of 1056616042 in words is "one billion, fifty-six million, six hundred sixteen thousand, forty-two".