2542140709 has 8 divisors (see below), whose sum is σ = 2624901120. Its totient is φ = 2459427600.

The previous prime is 2542140697. The next prime is 2542140737. The reversal of 2542140709 is 9070412452.

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 2542140709 - 2¹¹ = 2542138661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542140109) 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, 121404 + ... + 140794.

It is an arithmetic number, because the mean of its divisors is an integer number (328112640).

Almost surely, 2^2542140709 is an apocalyptic number.

It is an amenable number.

2542140709 is a deficient number, since it is larger than the sum of its proper divisors (82760411).

2542140709 is a wasteful number, since it uses less digits than its factorization.

2542140709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23651.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2542140709 is about 50419.6460618279. The cubic root of 2542140709 is about 1364.7921895577.

The spelling of 2542140709 in words is "two billion, five hundred forty-two million, one hundred forty thousand, seven hundred nine".