125233129 has 4 divisors (see below), whose sum is σ = 143123584. Its totient is φ = 107342676.

The previous prime is 125233127. The next prime is 125233151. The reversal of 125233129 is 921332521.

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: 921332521 = 271 ⋅3399751.

It is not a de Polignac number, because 125233129 - 2¹ = 125233127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125233097 and 125233106.

It is not an unprimeable number, because it can be changed into a prime (125233127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8945217 + ... + 8945230.

It is an arithmetic number, because the mean of its divisors is an integer number (35780896).

Almost surely, 2^125233129 is an apocalyptic number.

It is an amenable number.

125233129 is a deficient number, since it is larger than the sum of its proper divisors (17890455).

125233129 is an equidigital number, since it uses as much as digits as its factorization.

125233129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17890454.

The product of its digits is 3240, while the sum is 28.

The square root of 125233129 is about 11190.7608767233. The cubic root of 125233129 is about 500.3106456253.

The spelling of 125233129 in words is "one hundred twenty-five million, two hundred thirty-three thousand, one hundred twenty-nine".