125245251 has 16 divisors (see below), whose sum is σ = 187255200. Its totient is φ = 82728864.

The previous prime is 125245249. The next prime is 125245277. The reversal of 125245251 is 152542521.

It is not a de Polignac number, because 125245251 - 2¹ = 125245249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (125245291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18336 + ... + 24221.

It is an arithmetic number, because the mean of its divisors is an integer number (11703450).

Almost surely, 2^125245251 is an apocalyptic number.

125245251 is a deficient number, since it is larger than the sum of its proper divisors (62009949).

125245251 is a wasteful number, since it uses less digits than its factorization.

125245251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42675 (or 42669 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 125245251 is about 11191.3024711157. The cubic root of 125245251 is about 500.3267877064.

Adding to 125245251 its reverse (152542521), we get a palindrome (277787772).

The spelling of 125245251 in words is "one hundred twenty-five million, two hundred forty-five thousand, two hundred fifty-one".