3133987 has 2 divisors, whose sum is σ = 3133988. Its totient is φ = 3133986.

The previous prime is 3133961. The next prime is 3134017. The reversal of 3133987 is 7893313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3133987 - 2¹⁹ = 2609699 is a prime.

It is not a weakly prime, because it can be changed into another prime (3133927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566993 + 1566994.

It is an arithmetic number, because the mean of its divisors is an integer number (1566994).

Almost surely, 2^3133987 is an apocalyptic number.

3133987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3133987 is an equidigital number, since it uses as much as digits as its factorization.

3133987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 3133987 is about 1770.3070355167. The cubic root of 3133987 is about 146.3409028946.

The spelling of 3133987 in words is "three million, one hundred thirty-three thousand, nine hundred eighty-seven".