425961143 has 4 divisors (see below), whose sum is σ = 432318840. Its totient is φ = 419603448.

The previous prime is 425961097. The next prime is 425961149. The reversal of 425961143 is 341169524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425961143 - 2⁶ = 425961079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425961149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3178748 + ... + 3178881.

It is an arithmetic number, because the mean of its divisors is an integer number (108079710).

Almost surely, 2^425961143 is an apocalyptic number.

425961143 is a deficient number, since it is larger than the sum of its proper divisors (6357697).

425961143 is an equidigital number, since it uses as much as digits as its factorization.

425961143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357696.

The product of its digits is 25920, while the sum is 35.

The square root of 425961143 is about 20638.8261051834. The cubic root of 425961143 is about 752.4136421835.

The spelling of 425961143 in words is "four hundred twenty-five million, nine hundred sixty-one thousand, one hundred forty-three".