3125423009 has 2 divisors, whose sum is σ = 3125423010. Its totient is φ = 3125423008.

The previous prime is 3125422973. The next prime is 3125423179. The reversal of 3125423009 is 9003245213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2648131600 + 477291409 = 51460^2 + 21847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3125423009 is a prime.

It is a super-2 number, since 2×3125423009² = 19536537970373228162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3125420009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562711504 + 1562711505.

It is an arithmetic number, because the mean of its divisors is an integer number (1562711505).

Almost surely, 2^3125423009 is an apocalyptic number.

It is an amenable number.

3125423009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125423009 is an equidigital number, since it uses as much as digits as its factorization.

3125423009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3125423009 is about 55905.4828169832. The cubic root of 3125423009 is about 1462.0748333739.

The spelling of 3125423009 in words is "three billion, one hundred twenty-five million, four hundred twenty-three thousand, nine".