6157000621 has 2 divisors, whose sum is σ = 6157000622. Its totient is φ = 6157000620.

The previous prime is 6157000607. The next prime is 6157000639. The reversal of 6157000621 is 1260007516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4542086025 + 1614914596 = 67395^2 + 40186^2 .

It is a cyclic number.

It is not a de Polignac number, because 6157000621 - 2¹⁵ = 6156967853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6157000621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6157001621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3078500310 + 3078500311.

It is an arithmetic number, because the mean of its divisors is an integer number (3078500311).

Almost surely, 2^6157000621 is an apocalyptic number.

It is an amenable number.

6157000621 is a deficient number, since it is larger than the sum of its proper divisors (1).

6157000621 is an equidigital number, since it uses as much as digits as its factorization.

6157000621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 6157000621 is about 78466.5573413285. The cubic root of 6157000621 is about 1832.8337179154.

The spelling of 6157000621 in words is "six billion, one hundred fifty-seven million, six hundred twenty-one", and thus it is an aban number.