125153279 has 4 divisors (see below), whose sum is σ = 128205840. Its totient is φ = 122100720.

The previous prime is 125153267. The next prime is 125153311. The reversal of 125153279 is 972351521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 972351521 = 15647 ⋅62143.

It is a cyclic number.

It is not a de Polignac number, because 125153279 - 2⁸ = 125153023 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 (125153579) 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, 1526219 + ... + 1526300.

It is an arithmetic number, because the mean of its divisors is an integer number (32051460).

Almost surely, 2^125153279 is an apocalyptic number.

125153279 is a deficient number, since it is larger than the sum of its proper divisors (3052561).

125153279 is an equidigital number, since it uses as much as digits as its factorization.

125153279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052560.

The product of its digits is 18900, while the sum is 35.

The square root of 125153279 is about 11187.1926326492. The cubic root of 125153279 is about 500.2042885210.

The spelling of 125153279 in words is "one hundred twenty-five million, one hundred fifty-three thousand, two hundred seventy-nine".