2542549145 has 8 divisors (see below), whose sum is σ = 3183713856. Its totient is φ = 1945602736.

The previous prime is 2542549111. The next prime is 2542549147. The reversal of 2542549145 is 5419452452.

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

It is a cyclic number.

It is not a de Polignac number, because 2542549145 - 2⁸ = 2542548889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542549147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11054447 + ... + 11054676.

It is an arithmetic number, because the mean of its divisors is an integer number (397964232).

Almost surely, 2^2542549145 is an apocalyptic number.

It is an amenable number.

2542549145 is a deficient number, since it is larger than the sum of its proper divisors (641164711).

2542549145 is a wasteful number, since it uses less digits than its factorization.

2542549145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22109151.

The product of its digits is 288000, while the sum is 41.

The square root of 2542549145 is about 50423.6962647523. The cubic root of 2542549145 is about 1364.8652776195.

The spelling of 2542549145 in words is "two billion, five hundred forty-two million, five hundred forty-nine thousand, one hundred forty-five".