671533135 has 32 divisors (see below), whose sum is σ = 1026023040. Its totient is φ = 410393088.

The previous prime is 671533127. The next prime is 671533151. The reversal of 671533135 is 531335176.

It is not a de Polignac number, because 671533135 - 2³ = 671533127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671533135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12252 + ... + 38641.

It is an arithmetic number, because the mean of its divisors is an integer number (32063220).

Almost surely, 2^671533135 is an apocalyptic number.

671533135 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

671533135 is a deficient number, since it is larger than the sum of its proper divisors (354489905).

671533135 is a wasteful number, since it uses less digits than its factorization.

671533135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50947.

The product of its digits is 28350, while the sum is 34.

The square root of 671533135 is about 25913.9563748957. The cubic root of 671533135 is about 875.7009392986.

The spelling of 671533135 in words is "six hundred seventy-one million, five hundred thirty-three thousand, one hundred thirty-five".