125353123 has 8 divisors (see below), whose sum is σ = 146184800. Its totient is φ = 107445240.

The previous prime is 125353099. The next prime is 125353139. The reversal of 125353123 is 321353521.

It is not a de Polignac number, because 125353123 - 2²¹ = 123255971 is a prime.

It is a super-4 number, since 4×125353123⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125351123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182388 + ... + 183073.

It is an arithmetic number, because the mean of its divisors is an integer number (18273100).

Almost surely, 2^125353123 is an apocalyptic number.

125353123 is a deficient number, since it is larger than the sum of its proper divisors (20831677).

125353123 is an frugal number, since it uses more digits than its factorization.

125353123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365482 (or 365468 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The square root of 125353123 is about 11196.1208907371. The cubic root of 125353123 is about 500.4703879982.

The spelling of 125353123 in words is "one hundred twenty-five million, three hundred fifty-three thousand, one hundred twenty-three".