813901052 has 12 divisors (see below), whose sum is σ = 1425077976. Its totient is φ = 406735920.

The previous prime is 813901051. The next prime is 813901057. The reversal of 813901052 is 250109318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813901051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44963 + ... + 60410.

It is an arithmetic number, because the mean of its divisors is an integer number (118756498).

Almost surely, 2^813901052 is an apocalyptic number.

It is an amenable number.

813901052 is a deficient number, since it is larger than the sum of its proper divisors (611176924).

813901052 is a wasteful number, since it uses less digits than its factorization.

813901052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107308 (or 107306 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 813901052 is about 28528.9511198712. The cubic root of 813901052 is about 933.6638342570.

The spelling of 813901052 in words is "eight hundred thirteen million, nine hundred one thousand, fifty-two".