125297869 has 4 divisors (see below), whose sum is σ = 125354944. Its totient is φ = 125240796.

The previous prime is 125297863. The next prime is 125297881. The reversal of 125297869 is 968792521.

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: 968792521 = 157 ⋅6170653.

It is a cyclic number.

It is not a de Polignac number, because 125297869 - 2⁷ = 125297741 is a prime.

It is a super-2 number, since 2×125297869² = 31399111951882322, which contains 22 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 (125297863) 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, 25107 + ... + 29680.

It is an arithmetic number, because the mean of its divisors is an integer number (31338736).

Almost surely, 2^125297869 is an apocalyptic number.

It is an amenable number.

125297869 is a deficient number, since it is larger than the sum of its proper divisors (57075).

125297869 is an equidigital number, since it uses as much as digits as its factorization.

125297869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57074.

The product of its digits is 544320, while the sum is 49.

The square root of 125297869 is about 11193.6530676987. The cubic root of 125297869 is about 500.3968436136.

The spelling of 125297869 in words is "one hundred twenty-five million, two hundred ninety-seven thousand, eight hundred sixty-nine".