425123405 has 8 divisors (see below), whose sum is σ = 583026432. Its totient is φ = 291513168.

The previous prime is 425123399. The next prime is 425123431. The reversal of 425123405 is 504321524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425123405 - 2²⁰ = 424074829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6073157 + ... + 6073226.

It is an arithmetic number, because the mean of its divisors is an integer number (72878304).

Almost surely, 2^425123405 is an apocalyptic number.

It is an amenable number.

425123405 is a deficient number, since it is larger than the sum of its proper divisors (157903027).

425123405 is a wasteful number, since it uses less digits than its factorization.

425123405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12146395.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 425123405 is about 20618.5209217344. The cubic root of 425123405 is about 751.9200610335.

Adding to 425123405 its reverse (504321524), we get a palindrome (929444929).

The spelling of 425123405 in words is "four hundred twenty-five million, one hundred twenty-three thousand, four hundred five".