425145123 has 12 divisors (see below), whose sum is σ = 661337040. Its totient is φ = 261627696.

The previous prime is 425145107. The next prime is 425145137. The reversal of 425145123 is 321541524.

It is not a de Polignac number, because 425145123 - 2⁴ = 425145107 is a prime.

It is a super-2 number, since 2×425145123² = 361496751221370258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (425145223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1816743 + ... + 1816976.

It is an arithmetic number, because the mean of its divisors is an integer number (55111420).

Almost surely, 2^425145123 is an apocalyptic number.

425145123 is a deficient number, since it is larger than the sum of its proper divisors (236191917).

425145123 is a wasteful number, since it uses less digits than its factorization.

425145123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633738 (or 3633735 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 425145123 is about 20619.0475774222. The cubic root of 425145123 is about 751.9328650975.

Adding to 425145123 its reverse (321541524), we get a palindrome (746686647).

The spelling of 425145123 in words is "four hundred twenty-five million, one hundred forty-five thousand, one hundred twenty-three".