3131087 has 2 divisors, whose sum is σ = 3131088. Its totient is φ = 3131086.

The previous prime is 3131057. The next prime is 3131099. The reversal of 3131087 is 7801313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3131087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3131017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565543 + 1565544.

It is an arithmetic number, because the mean of its divisors is an integer number (1565544).

Almost surely, 2^3131087 is an apocalyptic number.

3131087 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131087 is an equidigital number, since it uses as much as digits as its factorization.

3131087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 3131087 is about 1769.4877789914. The cubic root of 3131087 is about 146.2957506560.

The spelling of 3131087 in words is "three million, one hundred thirty-one thousand, eighty-seven".