3131875066 has 4 divisors (see below), whose sum is σ = 4697812602. Its totient is φ = 1565937532.

The previous prime is 3131875049. The next prime is 3131875073. The reversal of 3131875066 is 6605781313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6605781313 = 1303 ⋅5069671.

It can be written as a sum of positive squares in only one way, i.e., 3128053041 + 3822025 = 55929^2 + 1955^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 782968765 + ... + 782968768.

Almost surely, 2^3131875066 is an apocalyptic number.

3131875066 is a deficient number, since it is larger than the sum of its proper divisors (1565937536).

3131875066 is a wasteful number, since it uses less digits than its factorization.

3131875066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565937535.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 3131875066 is about 55963.1581131730. The cubic root of 3131875066 is about 1463.0802339449.

The spelling of 3131875066 in words is "three billion, one hundred thirty-one million, eight hundred seventy-five thousand, sixty-six".