425215143 has 16 divisors (see below), whose sum is σ = 633596640. Its totient is φ = 281835072.

The previous prime is 425215129. The next prime is 425215159. The reversal of 425215143 is 341512524.

It is not a de Polignac number, because 425215143 - 2¹⁷ = 425084071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425215103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40846 + ... + 50187.

It is an arithmetic number, because the mean of its divisors is an integer number (39599790).

Almost surely, 2^425215143 is an apocalyptic number.

425215143 is a deficient number, since it is larger than the sum of its proper divisors (208381497).

425215143 is a wasteful number, since it uses less digits than its factorization.

425215143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91215 (or 91209 counting only the distinct ones).

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

The square root of 425215143 is about 20620.7454520927. The cubic root of 425215143 is about 751.9741431194.

Adding to 425215143 its reverse (341512524), we get a palindrome (766727667).

The spelling of 425215143 in words is "four hundred twenty-five million, two hundred fifteen thousand, one hundred forty-three".