125449103253 has 4 divisors (see below), whose sum is σ = 167265471008. Its totient is φ = 83632735500.

The previous prime is 125449103249. The next prime is 125449103287. The reversal of 125449103253 is 352301944521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 125449103253 - 2² = 125449103249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125449103203) 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, 20908183873 + ... + 20908183878.

It is an arithmetic number, because the mean of its divisors is an integer number (41816367752).

Almost surely, 2^125449103253 is an apocalyptic number.

It is an amenable number.

125449103253 is a deficient number, since it is larger than the sum of its proper divisors (41816367755).

125449103253 is an equidigital number, since it uses as much as digits as its factorization.

125449103253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41816367754.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 125449103253 in words is "one hundred twenty-five billion, four hundred forty-nine million, one hundred three thousand, two hundred fifty-three".