671138151 has 4 divisors (see below), whose sum is σ = 894850872. Its totient is φ = 447425432.

The previous prime is 671138141. The next prime is 671138161. The reversal of 671138151 is 151831176.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (671138141) and next prime (671138161).

It is a cyclic number.

It is not a de Polignac number, because 671138151 - 2⁹ = 671137639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671138131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111856356 + ... + 111856361.

It is an arithmetic number, because the mean of its divisors is an integer number (223712718).

Almost surely, 2^671138151 is an apocalyptic number.

671138151 is a deficient number, since it is larger than the sum of its proper divisors (223712721).

671138151 is a wasteful number, since it uses less digits than its factorization.

671138151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223712720.

The product of its digits is 5040, while the sum is 33.

The square root of 671138151 is about 25906.3341868355. The cubic root of 671138151 is about 875.5292149864.

The spelling of 671138151 in words is "six hundred seventy-one million, one hundred thirty-eight thousand, one hundred fifty-one".