2542005142 has 4 divisors (see below), whose sum is σ = 3813007716. Its totient is φ = 1271002570.

The previous prime is 2542005107. The next prime is 2542005143. The reversal of 2542005142 is 2415002452.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542005143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635501284 + ... + 635501287.

It is an arithmetic number, because the mean of its divisors is an integer number (953251929).

Almost surely, 2^2542005142 is an apocalyptic number.

2542005142 is a deficient number, since it is larger than the sum of its proper divisors (1271002574).

2542005142 is a wasteful number, since it uses less digits than its factorization.

2542005142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271002573.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2542005142 is about 50418.3016572355. The cubic root of 2542005142 is about 1364.7679286305.

Adding to 2542005142 its reverse (2415002452), we get a palindrome (4957007594).

The spelling of 2542005142 in words is "two billion, five hundred forty-two million, five thousand, one hundred forty-two".