125253145 has 4 divisors (see below), whose sum is σ = 150303780. Its totient is φ = 100202512.

The previous prime is 125253131. The next prime is 125253169. The reversal of 125253145 is 541352521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541352521 = 10163 ⋅53267.

It can be written as a sum of positive squares in 2 ways, for example, as 96609241 + 28643904 = 9829^2 + 5352^2 .

It is a cyclic number.

It is not a de Polignac number, because 125253145 - 2¹³ = 125244953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12525310 + ... + 12525319.

It is an arithmetic number, because the mean of its divisors is an integer number (37575945).

Almost surely, 2^125253145 is an apocalyptic number.

It is an amenable number.

125253145 is a deficient number, since it is larger than the sum of its proper divisors (25050635).

125253145 is an equidigital number, since it uses as much as digits as its factorization.

125253145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25050634.

The product of its digits is 6000, while the sum is 28.

The square root of 125253145 is about 11191.6551501554. The cubic root of 125253145 is about 500.3372990742.

The spelling of 125253145 in words is "one hundred twenty-five million, two hundred fifty-three thousand, one hundred forty-five".