813262057 has 4 divisors (see below), whose sum is σ = 816263296. Its totient is φ = 810260820.

The previous prime is 813262039. The next prime is 813262063. The reversal of 813262057 is 750262318.

It is a happy number.

813262057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 813262057 - 2¹⁹ = 812737769 is a prime.

It is a super-2 number, since 2×813262057² = 1322790346711742498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813262097) 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, 1500213 + ... + 1500754.

It is an arithmetic number, because the mean of its divisors is an integer number (204065824).

Almost surely, 2^813262057 is an apocalyptic number.

It is an amenable number.

813262057 is a deficient number, since it is larger than the sum of its proper divisors (3001239).

813262057 is a wasteful number, since it uses less digits than its factorization.

813262057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001238.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 813262057 is about 28517.7498586407. The cubic root of 813262057 is about 933.4194299686.

The spelling of 813262057 in words is "eight hundred thirteen million, two hundred sixty-two thousand, fifty-seven".