7157056453 has 4 divisors (see below), whose sum is σ = 7292095308. Its totient is φ = 7022017600.

The previous prime is 7157056433. The next prime is 7157056463. The reversal of 7157056453 is 3546507517.

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 4184407969 + 2972648484 = 64687^2 + 54522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7157056453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7157056433) 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, 67519348 + ... + 67519453.

It is an arithmetic number, because the mean of its divisors is an integer number (1823023827).

Almost surely, 2^7157056453 is an apocalyptic number.

It is an amenable number.

7157056453 is a deficient number, since it is larger than the sum of its proper divisors (135038855).

7157056453 is a wasteful number, since it uses less digits than its factorization.

7157056453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135038854.

The product of its (nonzero) digits is 441000, while the sum is 43.

The square root of 7157056453 is about 84599.3880178811. The cubic root of 7157056453 is about 1927.1320799699.

The spelling of 7157056453 in words is "seven billion, one hundred fifty-seven million, fifty-six thousand, four hundred fifty-three".