1056247345 has 16 divisors (see below), whose sum is σ = 1309432320. Its totient is φ = 817084800.

The previous prime is 1056247343. The next prime is 1056247351. The reversal of 1056247345 is 5437426501.

It is not a de Polignac number, because 1056247345 - 2¹ = 1056247343 is a prime.

It is a super-2 number, since 2×1056247345² = 2231316907639098050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056247343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297541 + ... + 301069.

It is an arithmetic number, because the mean of its divisors is an integer number (81839520).

Almost surely, 2^1056247345 is an apocalyptic number.

It is an amenable number.

1056247345 is a deficient number, since it is larger than the sum of its proper divisors (253184975).

1056247345 is a wasteful number, since it uses less digits than its factorization.

1056247345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 1056247345 is about 32499.9591538205. The cubic root of 1056247345 is about 1018.4081748292.

The spelling of 1056247345 in words is "one billion, fifty-six million, two hundred forty-seven thousand, three hundred forty-five".