125421275 has 12 divisors (see below), whose sum is σ = 177740112. Its totient is φ = 86003040.

The previous prime is 125421251. The next prime is 125421293. The reversal of 125421275 is 572124521.

It is a happy number.

It is not a de Polignac number, because 125421275 - 2⁶ = 125421211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358172 + ... + 358521.

It is an arithmetic number, because the mean of its divisors is an integer number (14811676).

Almost surely, 2^125421275 is an apocalyptic number.

125421275 is a deficient number, since it is larger than the sum of its proper divisors (52318837).

125421275 is an equidigital number, since it uses as much as digits as its factorization.

125421275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716710 (or 716705 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 125421275 is about 11199.1640313016. The cubic root of 125421275 is about 500.5610701650.

Adding to 125421275 its reverse (572124521), we get a palindrome (697545796).

The spelling of 125421275 in words is "one hundred twenty-five million, four hundred twenty-one thousand, two hundred seventy-five".