2542140245 has 16 divisors (see below), whose sum is σ = 3213517440. Its totient is φ = 1925239104.

The previous prime is 2542140239. The next prime is 2542140287. The reversal of 2542140245 is 5420412452.

It is a cyclic number.

It is not a de Polignac number, because 2542140245 - 2⁴ = 2542140229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128219 + ... + 146711.

It is an arithmetic number, because the mean of its divisors is an integer number (200844840).

Almost surely, 2^2542140245 is an apocalyptic number.

It is an amenable number.

2542140245 is a deficient number, since it is larger than the sum of its proper divisors (671377195).

2542140245 is a wasteful number, since it uses less digits than its factorization.

2542140245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19964.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 2542140245 is about 50419.6414604467. The cubic root of 2542140245 is about 1364.7921065222.

Adding to 2542140245 its reverse (5420412452), we get a palindrome (7962552697).

The spelling of 2542140245 in words is "two billion, five hundred forty-two million, one hundred forty thousand, two hundred forty-five".