125969401 has 2 divisors, whose sum is σ = 125969402. Its totient is φ = 125969400.

The previous prime is 125969387. The next prime is 125969419. The reversal of 125969401 is 104969521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102495376 + 23474025 = 10124^2 + 4845^2 .

It is a cyclic number.

It is not a de Polignac number, because 125969401 - 2⁵ = 125969369 is a prime.

It is not a weakly prime, because it can be changed into another prime (125964401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62984700 + 62984701.

It is an arithmetic number, because the mean of its divisors is an integer number (62984701).

Almost surely, 2^125969401 is an apocalyptic number.

It is an amenable number.

125969401 is a deficient number, since it is larger than the sum of its proper divisors (1).

125969401 is an equidigital number, since it uses as much as digits as its factorization.

125969401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 125969401 is about 11223.6090897714. The cubic root of 125969401 is about 501.2892076967.

The spelling of 125969401 in words is "one hundred twenty-five million, nine hundred sixty-nine thousand, four hundred one".