125472517 has 4 divisors (see below), whose sum is σ = 125499040. Its totient is φ = 125445996.

The previous prime is 125472497. The next prime is 125472533. The reversal of 125472517 is 715274521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 715274521 = 13 ⋅55021117.

It is a cyclic number.

It is not a de Polignac number, because 125472517 - 2¹⁵ = 125439749 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 (125472577) 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, 4017 + ... + 16342.

It is an arithmetic number, because the mean of its divisors is an integer number (31374760).

Almost surely, 2^125472517 is an apocalyptic number.

It is an amenable number.

125472517 is a deficient number, since it is larger than the sum of its proper divisors (26523).

125472517 is an equidigital number, since it uses as much as digits as its factorization.

125472517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26522.

The product of its digits is 19600, while the sum is 34.

The square root of 125472517 is about 11201.4515577223. The cubic root of 125472517 is about 500.6292304725.

The spelling of 125472517 in words is "one hundred twenty-five million, four hundred seventy-two thousand, five hundred seventeen".