125404201 has 8 divisors (see below), whose sum is σ = 137599560. Its totient is φ = 113572992.

The previous prime is 125404193. The next prime is 125404217. The reversal of 125404201 is 102404521.

It can be written as a sum of positive squares in 4 ways, for example, as 16410601 + 108993600 = 4051^2 + 10440^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125404201 - 2³ = 125404193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125404241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90316 + ... + 91693.

It is an arithmetic number, because the mean of its divisors is an integer number (17199945).

Almost surely, 2^125404201 is an apocalyptic number.

It is an amenable number.

125404201 is a deficient number, since it is larger than the sum of its proper divisors (12195359).

125404201 is a wasteful number, since it uses less digits than its factorization.

125404201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182075.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 125404201 is about 11198.4017163165. The cubic root of 125404201 is about 500.5383548068.

Adding to 125404201 its product of nonzero digits (320), we get a palindrome (125404521).

Adding to 125404201 its reverse (102404521), we get a palindrome (227808722).

The spelling of 125404201 in words is "one hundred twenty-five million, four hundred four thousand, two hundred one".