812303157 has 8 divisors (see below), whose sum is σ = 1083222720. Its totient is φ = 541459520.

The previous prime is 812303117. The next prime is 812303161. The reversal of 812303157 is 751303218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 812303157 - 2¹⁰ = 812302133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812303117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14344 + ... + 42782.

It is an arithmetic number, because the mean of its divisors is an integer number (135402840).

Almost surely, 2^812303157 is an apocalyptic number.

It is an amenable number.

812303157 is a deficient number, since it is larger than the sum of its proper divisors (270919563).

812303157 is a wasteful number, since it uses less digits than its factorization.

812303157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37963.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 812303157 is about 28500.9325636899. The cubic root of 812303157 is about 933.0524273546.

The spelling of 812303157 in words is "eight hundred twelve million, three hundred three thousand, one hundred fifty-seven".