2542142 has 8 divisors (see below), whose sum is σ = 3820176. Its totient is φ = 1268752.

The previous prime is 2542139. The next prime is 2542147. The reversal of 2542142 is 2412452.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542147) 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, 1058 + ... + 2490.

It is an arithmetic number, because the mean of its divisors is an integer number (477522).

2^2542142 is an apocalyptic number.

2542142 is a deficient number, since it is larger than the sum of its proper divisors (1278034).

2542142 is a wasteful number, since it uses less digits than its factorization.

2542142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322.

The product of its digits is 640, while the sum is 20.

The square root of 2542142 is about 1594.4096086013. The cubic root of 2542142 is about 136.4792420590.

Adding to 2542142 its reverse (2412452), we get a palindrome (4954594).

The spelling of 2542142 in words is "two million, five hundred forty-two thousand, one hundred forty-two".