125551201 has 2 divisors, whose sum is σ = 125551202. Its totient is φ = 125551200.

The previous prime is 125551163. The next prime is 125551207. The reversal of 125551201 is 102155521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88341201 + 37210000 = 9399^2 + 6100^2 .

It is a cyclic number.

It is not a de Polignac number, because 125551201 - 2¹¹ = 125549153 is a prime.

It is not a weakly prime, because it can be changed into another prime (125551207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62775600 + 62775601.

It is an arithmetic number, because the mean of its divisors is an integer number (62775601).

Almost surely, 2^125551201 is an apocalyptic number.

It is an amenable number.

125551201 is a deficient number, since it is larger than the sum of its proper divisors (1).

125551201 is an equidigital number, since it uses as much as digits as its factorization.

125551201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 125551201 is about 11204.9632306403. The cubic root of 125551201 is about 500.7338570474.

The spelling of 125551201 in words is "one hundred twenty-five million, five hundred fifty-one thousand, two hundred one".