813320135 has 8 divisors (see below), whose sum is σ = 1018418400. Its totient is φ = 622366624.

The previous prime is 813320117. The next prime is 813320141. The reversal of 813320135 is 531023318.

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 813320135 - 2¹⁶ = 813254599 is a prime.

It is a super-2 number, since 2×813320135² = 1322979283992836450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536060 + ... + 3536289.

It is an arithmetic number, because the mean of its divisors is an integer number (127302300).

Almost surely, 2^813320135 is an apocalyptic number.

813320135 is a deficient number, since it is larger than the sum of its proper divisors (205098265).

813320135 is a wasteful number, since it uses less digits than its factorization.

813320135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072377.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 813320135 is about 28518.7681185566. The cubic root of 813320135 is about 933.4416490647.

The spelling of 813320135 in words is "eight hundred thirteen million, three hundred twenty thousand, one hundred thirty-five".