125461439 has 2 divisors, whose sum is σ = 125461440. Its totient is φ = 125461438.

The previous prime is 125461429. The next prime is 125461477. The reversal of 125461439 is 934164521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125461439 - 2⁴ = 125461423 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 125461399 and 125461408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125461429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62730719 + 62730720.

It is an arithmetic number, because the mean of its divisors is an integer number (62730720).

Almost surely, 2^125461439 is an apocalyptic number.

125461439 is a deficient number, since it is larger than the sum of its proper divisors (1).

125461439 is an equidigital number, since it uses as much as digits as its factorization.

125461439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 125461439 is about 11200.9570573233. The cubic root of 125461439 is about 500.6144964788.

The spelling of 125461439 in words is "one hundred twenty-five million, four hundred sixty-one thousand, four hundred thirty-nine".