125313251 has 8 divisors (see below), whose sum is σ = 143608320. Its totient is φ = 107116488.

The previous prime is 125313247. The next prime is 125313257. The reversal of 125313251 is 152313521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 125313251 - 2² = 125313247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125313257) 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, 21821 + ... + 26958.

It is an arithmetic number, because the mean of its divisors is an integer number (17951040).

Almost surely, 2^125313251 is an apocalyptic number.

125313251 is a deficient number, since it is larger than the sum of its proper divisors (18295069).

125313251 is an equidigital number, since it uses as much as digits as its factorization.

125313251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49153.

The product of its digits is 900, while the sum is 23.

The square root of 125313251 is about 11194.3401324062. The cubic root of 125313251 is about 500.4173195918.

Adding to 125313251 its reverse (152313521), we get a palindrome (277626772).

The spelling of 125313251 in words is "one hundred twenty-five million, three hundred thirteen thousand, two hundred fifty-one".