125105201 has 4 divisors (see below), whose sum is σ = 134728692. Its totient is φ = 115481712.

The previous prime is 125105179. The next prime is 125105203. The reversal of 125105201 is 102501521.

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 52940176 + 72165025 = 7276^2 + 8495^2 .

It is a cyclic number.

It is not a de Polignac number, because 125105201 - 2²² = 120910897 is a prime.

It is a super-2 number, since 2×125105201² = 31302622634500802, which contains 22 as substring.

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 125105201.

It is not an unprimeable number, because it can be changed into a prime (125105203) 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, 4811726 + ... + 4811751.

It is an arithmetic number, because the mean of its divisors is an integer number (33682173).

Almost surely, 2^125105201 is an apocalyptic number.

It is an amenable number.

125105201 is a deficient number, since it is larger than the sum of its proper divisors (9623491).

125105201 is an equidigital number, since it uses as much as digits as its factorization.

125105201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9623490.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 125105201 is about 11185.0436297763. The cubic root of 125105201 is about 500.1402286682.

Adding to 125105201 its reverse (102501521), we get a palindrome (227606722).

The spelling of 125105201 in words is "one hundred twenty-five million, one hundred five thousand, two hundred one".