125746123 has 4 divisors (see below), whose sum is σ = 132364360. Its totient is φ = 119127888.

The previous prime is 125746109. The next prime is 125746141. The reversal of 125746123 is 321647521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321647521 = 13 ⋅24742117.

It is a cyclic number.

It is not a de Polignac number, because 125746123 - 2¹⁷ = 125615051 is a prime.

It is a super-2 number, since 2×125746123² = 31624174899062258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125741123) 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, 3309090 + ... + 3309127.

It is an arithmetic number, because the mean of its divisors is an integer number (33091090).

Almost surely, 2^125746123 is an apocalyptic number.

125746123 is a deficient number, since it is larger than the sum of its proper divisors (6618237).

125746123 is an equidigital number, since it uses as much as digits as its factorization.

125746123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6618236.

The product of its digits is 10080, while the sum is 31.

The square root of 125746123 is about 11213.6578777846. The cubic root of 125746123 is about 500.9928578284.

The spelling of 125746123 in words is "one hundred twenty-five million, seven hundred forty-six thousand, one hundred twenty-three".