125199413 has 2 divisors, whose sum is σ = 125199414. Its totient is φ = 125199412.

The previous prime is 125199391. The next prime is 125199439. The reversal of 125199413 is 314991521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78180964 + 47018449 = 8842^2 + 6857^2 .

It is a cyclic number.

It is not a de Polignac number, because 125199413 - 2¹⁰ = 125198389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125199443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62599706 + 62599707.

It is an arithmetic number, because the mean of its divisors is an integer number (62599707).

Almost surely, 2^125199413 is an apocalyptic number.

It is an amenable number.

125199413 is a deficient number, since it is larger than the sum of its proper divisors (1).

125199413 is an equidigital number, since it uses as much as digits as its factorization.

125199413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 35.

The square root of 125199413 is about 11189.2543540667. The cubic root of 125199413 is about 500.2657427366.

The spelling of 125199413 in words is "one hundred twenty-five million, one hundred ninety-nine thousand, four hundred thirteen".