671545122 has 32 divisors (see below), whose sum is σ = 1421245440. Its totient is φ = 211097040.

The previous prime is 671545117. The next prime is 671545123. The reversal of 671545122 is 221545176.

It is not an unprimeable number, because it can be changed into a prime (671545123) 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 15 ways as a sum of consecutive naturals, for example, 24472 + ... + 44067.

It is an arithmetic number, because the mean of its divisors is an integer number (44413920).

Almost surely, 2^671545122 is an apocalyptic number.

671545122 is an abundant number, since it is smaller than the sum of its proper divisors (749700318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671545122 is a wasteful number, since it uses less digits than its factorization.

671545122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68638.

The product of its digits is 16800, while the sum is 33.

The square root of 671545122 is about 25914.1876585009. The cubic root of 671545122 is about 875.7061497462.

The spelling of 671545122 in words is "six hundred seventy-one million, five hundred forty-five thousand, one hundred twenty-two".