125212301 has 4 divisors (see below), whose sum is σ = 126927612. Its totient is φ = 123496992.

The previous prime is 125212279. The next prime is 125212303. The reversal of 125212301 is 103212521.

It is a happy number.

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 77616100 + 47596201 = 8810^2 + 6899^2 .

It is a cyclic number.

It is not a de Polignac number, because 125212301 - 2¹⁸ = 124950157 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 125212301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125212303) 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, 857546 + ... + 857691.

It is an arithmetic number, because the mean of its divisors is an integer number (31731903).

Almost surely, 2^125212301 is an apocalyptic number.

It is an amenable number.

125212301 is a deficient number, since it is larger than the sum of its proper divisors (1715311).

125212301 is an equidigital number, since it uses as much as digits as its factorization.

125212301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715310.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 125212301 is about 11189.8302489359. The cubic root of 125212301 is about 500.2829078961.

Adding to 125212301 its reverse (103212521), we get a palindrome (228424822).

The spelling of 125212301 in words is "one hundred twenty-five million, two hundred twelve thousand, three hundred one".