3121933 has 2 divisors, whose sum is σ = 3121934. Its totient is φ = 3121932.

The previous prime is 3121927. The next prime is 3121961. The reversal of 3121933 is 3391213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2832489 + 289444 = 1683^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 3121933 - 2⁵ = 3121901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560966 + 1560967.

It is an arithmetic number, because the mean of its divisors is an integer number (1560967).

Almost surely, 2^3121933 is an apocalyptic number.

It is an amenable number.

3121933 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121933 is an equidigital number, since it uses as much as digits as its factorization.

3121933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 22.

The square root of 3121933 is about 1766.8992614181. The cubic root of 3121933 is about 146.1530421221.

The spelling of 3121933 in words is "three million, one hundred twenty-one thousand, nine hundred thirty-three".