3123557 has 2 divisors, whose sum is σ = 3123558. Its totient is φ = 3123556.

The previous prime is 3123553. The next prime is 3123583. The reversal of 3123557 is 7553213.

It is an a-pointer prime, because the next prime (3123583) can be obtained adding 3123557 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2937796 + 185761 = 1714^2 + 431^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123557 - 2² = 3123553 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 (3123553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561778 + 1561779.

It is an arithmetic number, because the mean of its divisors is an integer number (1561779).

Almost surely, 2^3123557 is an apocalyptic number.

It is an amenable number.

3123557 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123557 is an equidigital number, since it uses as much as digits as its factorization.

3123557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3150, while the sum is 26.

The square root of 3123557 is about 1767.3587638055. The cubic root of 3123557 is about 146.1783802055.

The spelling of 3123557 in words is "three million, one hundred twenty-three thousand, five hundred fifty-seven".