125272117 has 4 divisors (see below), whose sum is σ = 126857920. Its totient is φ = 123686316.

The previous prime is 125272109. The next prime is 125272123. The reversal of 125272117 is 711272521.

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: 711272521 = 9551 ⋅74471.

It is a cyclic number.

It is not a de Polignac number, because 125272117 - 2³ = 125272109 is a prime.

It is a super-4 number, since 4×125272117⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125273117) 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, 792783 + ... + 792940.

It is an arithmetic number, because the mean of its divisors is an integer number (31714480).

Almost surely, 2^125272117 is an apocalyptic number.

It is an amenable number.

125272117 is a deficient number, since it is larger than the sum of its proper divisors (1585803).

125272117 is an equidigital number, since it uses as much as digits as its factorization.

125272117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585802.

The product of its digits is 1960, while the sum is 28.

The square root of 125272117 is about 11192.5027138706. The cubic root of 125272117 is about 500.3625597040.

The spelling of 125272117 in words is "one hundred twenty-five million, two hundred seventy-two thousand, one hundred seventeen".