425515143 has 16 divisors (see below), whose sum is σ = 582999296. Its totient is φ = 275909760.

The previous prime is 425515091. The next prime is 425515159. The reversal of 425515143 is 341515524.

It is a de Polignac number, because none of the positive numbers 2^k-425515143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425515143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425515163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24246 + ... + 37932.

It is an arithmetic number, because the mean of its divisors is an integer number (36437456).

Almost surely, 2^425515143 is an apocalyptic number.

425515143 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

425515143 is a deficient number, since it is larger than the sum of its proper divisors (157484153).

425515143 is a wasteful number, since it uses less digits than its factorization.

425515143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13974.

The product of its digits is 12000, while the sum is 30.

The square root of 425515143 is about 20628.0183973158. The cubic root of 425515143 is about 752.1509471159.

The spelling of 425515143 in words is "four hundred twenty-five million, five hundred fifteen thousand, one hundred forty-three".