125402201 has 4 divisors (see below), whose sum is σ = 125424804. Its totient is φ = 125379600.

The previous prime is 125402197. The next prime is 125402219. The reversal of 125402201 is 102204521.

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 26419600 + 98982601 = 5140^2 + 9949^2 .

It is a cyclic number.

It is not a de Polignac number, because 125402201 - 2² = 125402197 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 125402201.

It is not an unprimeable number, because it can be changed into a prime (125402701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3371 + ... + 16191.

It is an arithmetic number, because the mean of its divisors is an integer number (31356201).

Almost surely, 2^125402201 is an apocalyptic number.

It is an amenable number.

125402201 is a deficient number, since it is larger than the sum of its proper divisors (22603).

125402201 is an equidigital number, since it uses as much as digits as its factorization.

125402201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22602.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 125402201 is about 11198.3124175029. The cubic root of 125402201 is about 500.5356938592.

Adding to 125402201 its reverse (102204521), we get a palindrome (227606722).

It can be divided in two parts, 12540 and 2201, that added together give a palindrome (14741).

The spelling of 125402201 in words is "one hundred twenty-five million, four hundred two thousand, two hundred one".