3151661223 has 4 divisors (see below), whose sum is σ = 4202214968. Its totient is φ = 2101107480.

The previous prime is 3151661203. The next prime is 3151661231. The reversal of 3151661223 is 3221661513.

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

It is not a de Polignac number, because 3151661223 - 2¹⁰ = 3151660199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3151661203) 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, 525276868 + ... + 525276873.

It is an arithmetic number, because the mean of its divisors is an integer number (1050553742).

Almost surely, 2^3151661223 is an apocalyptic number.

3151661223 is a deficient number, since it is larger than the sum of its proper divisors (1050553745).

3151661223 is a wasteful number, since it uses less digits than its factorization.

3151661223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050553744.

The product of its digits is 6480, while the sum is 30.

The square root of 3151661223 is about 56139.6582016670. The cubic root of 3151661223 is about 1466.1548548255.

The spelling of 3151661223 in words is "three billion, one hundred fifty-one million, six hundred sixty-one thousand, two hundred twenty-three".