2509142 has 8 divisors (see below), whose sum is σ = 3843936. Its totient is φ = 1227832.

The previous prime is 2509141. The next prime is 2509147. The reversal of 2509142 is 2419052.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13253 + ... + 13440.

It is an arithmetic number, because the mean of its divisors is an integer number (480492).

2^2509142 is an apocalyptic number.

2509142 is a deficient number, since it is larger than the sum of its proper divisors (1334794).

2509142 is a wasteful number, since it uses less digits than its factorization.

2509142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26742.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2509142 is about 1584.0271462320. The cubic root of 2509142 is about 135.8861142902.

The spelling of 2509142 in words is "two million, five hundred nine thousand, one hundred forty-two".