125415254 has 4 divisors (see below), whose sum is σ = 188122884. Its totient is φ = 62707626.

The previous prime is 125415247. The next prime is 125415263. The reversal of 125415254 is 452514521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452514521 = 29 ⋅15603949.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31353812 + ... + 31353815.

It is an arithmetic number, because the mean of its divisors is an integer number (47030721).

Almost surely, 2^125415254 is an apocalyptic number.

125415254 is a deficient number, since it is larger than the sum of its proper divisors (62707630).

125415254 is an equidigital number, since it uses as much as digits as its factorization.

125415254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62707629.

The product of its digits is 8000, while the sum is 29.

The square root of 125415254 is about 11198.8952133681. The cubic root of 125415254 is about 500.5530600237.

Adding to 125415254 its reverse (452514521), we get a palindrome (577929775).

The spelling of 125415254 in words is "one hundred twenty-five million, four hundred fifteen thousand, two hundred fifty-four".