125429588243 has 4 divisors (see below), whose sum is σ = 125950043208. Its totient is φ = 124909133280.

The previous prime is 125429588197. The next prime is 125429588261. The reversal of 125429588243 is 342885924521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125429588243 - 2¹⁰ = 125429587219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125429788243) 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, 260227121 + ... + 260227602.

It is an arithmetic number, because the mean of its divisors is an integer number (31487510802).

Almost surely, 2^125429588243 is an apocalyptic number.

125429588243 is a deficient number, since it is larger than the sum of its proper divisors (520454965).

125429588243 is an equidigital number, since it uses as much as digits as its factorization.

125429588243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520454964.

The product of its digits is 5529600, while the sum is 53.

The spelling of 125429588243 in words is "one hundred twenty-five billion, four hundred twenty-nine million, five hundred eighty-eight thousand, two hundred forty-three".