123719425 has 6 divisors (see below), whose sum is σ = 153412118. Its totient is φ = 98975520.

The previous prime is 123719399. The next prime is 123719441. The reversal of 123719425 is 524917321.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 41835024 + 81884401 = 6468^2 + 9049^2 .

It is not a de Polignac number, because 123719425 - 2²⁵ = 90164993 is a prime.

It is a super-2 number, since 2×123719425² = 30612992244661250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2474364 + ... + 2474413.

Almost surely, 2^123719425 is an apocalyptic number.

It is an amenable number.

123719425 is a deficient number, since it is larger than the sum of its proper divisors (29692693).

123719425 is an equidigital number, since it uses as much as digits as its factorization.

123719425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4948787 (or 4948782 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 123719425 is about 11122.9234016962. The cubic root of 123719425 is about 498.2867025963.

The spelling of 123719425 in words is "one hundred twenty-three million, seven hundred nineteen thousand, four hundred twenty-five".