125971201 has 4 divisors (see below), whose sum is σ = 126332500. Its totient is φ = 125609904.

The previous prime is 125971193. The next prime is 125971211. The reversal of 125971201 is 102179521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39388176 + 86583025 = 6276^2 + 9305^2 .

It is a cyclic number.

It is not a de Polignac number, because 125971201 - 2³ = 125971193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125971201.

It is not an unprimeable number, because it can be changed into a prime (125971211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180126 + ... + 180823.

It is an arithmetic number, because the mean of its divisors is an integer number (31583125).

Almost surely, 2^125971201 is an apocalyptic number.

It is an amenable number.

125971201 is a deficient number, since it is larger than the sum of its proper divisors (361299).

125971201 is an equidigital number, since it uses as much as digits as its factorization.

125971201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361298.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 125971201 is about 11223.6892775950. The cubic root of 125971201 is about 501.2915953567.

The spelling of 125971201 in words is "one hundred twenty-five million, nine hundred seventy-one thousand, two hundred one".