1056393545 has 4 divisors (see below), whose sum is σ = 1267672260. Its totient is φ = 845114832.

The previous prime is 1056393491. The next prime is 1056393551. The reversal of 1056393545 is 5453936501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 283720336 + 772673209 = 16844^2 + 27797^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056393545 - 2²⁸ = 787958089 is a prime.

It is a super-2 number, since 2×1056393545² = 2231934643835334050, which contains 22 as substring.

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, 105639350 + ... + 105639359.

It is an arithmetic number, because the mean of its divisors is an integer number (316918065).

Almost surely, 2^1056393545 is an apocalyptic number.

It is an amenable number.

1056393545 is a deficient number, since it is larger than the sum of its proper divisors (211278715).

1056393545 is an equidigital number, since it uses as much as digits as its factorization.

1056393545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211278714.

The product of its (nonzero) digits is 243000, while the sum is 41.

The square root of 1056393545 is about 32502.2083095903. The cubic root of 1056393545 is about 1018.4551601642.

The spelling of 1056393545 in words is "one billion, fifty-six million, three hundred ninety-three thousand, five hundred forty-five".