2551142 has 16 divisors (see below), whose sum is σ = 4245264. Its totient is φ = 1140000.

The previous prime is 2551127. The next prime is 2551169. The reversal of 2551142 is 2411552.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 392 + ... + 2292.

It is an arithmetic number, because the mean of its divisors is an integer number (265329).

2^2551142 is an apocalyptic number.

2551142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2551142 is a deficient number, since it is larger than the sum of its proper divisors (1694122).

2551142 is a wasteful number, since it uses less digits than its factorization.

2551142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its digits is 400, while the sum is 20.

The square root of 2551142 is about 1597.2294763120. The cubic root of 2551142 is about 136.6401124957.

Adding to 2551142 its reverse (2411552), we get a palindrome (4962694).

The spelling of 2551142 in words is "two million, five hundred fifty-one thousand, one hundred forty-two".