425187 has 24 divisors (see below), whose sum is σ = 745056. Its totient is φ = 228096.

The previous prime is 425149. The next prime is 425189. The reversal of 425187 is 781524.

It is not a de Polignac number, because 425187 - 2⁶ = 425123 is a prime.

It is an Ulam number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 425187.

It is not an unprimeable number, because it can be changed into a prime (425189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 873 + ... + 1269.

It is an arithmetic number, because the mean of its divisors is an integer number (31044).

2⁴²⁵¹⁸⁷ is an apocalyptic number.

425187 is a deficient number, since it is larger than the sum of its proper divisors (319869).

425187 is a wasteful number, since it uses less digits than its factorization.

425187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 424 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 425187 is about 652.0636472002. The cubic root of 425187 is about 75.1957552870.

The spelling of 425187 in words is "four hundred twenty-five thousand, one hundred eighty-seven".