2149542059 has 4 divisors (see below), whose sum is σ = 2456619504. Its totient is φ = 1842464616.

The previous prime is 2149542037. The next prime is 2149542061. The reversal of 2149542059 is 9502459412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2149542059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2149542259) 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, 153538712 + ... + 153538725.

It is an arithmetic number, because the mean of its divisors is an integer number (614154876).

Almost surely, 2^2149542059 is an apocalyptic number.

2149542059 is a deficient number, since it is larger than the sum of its proper divisors (307077445).

2149542059 is an equidigital number, since it uses as much as digits as its factorization.

2149542059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307077444.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 2149542059 is about 46363.1541097022. The cubic root of 2149542059 is about 1290.5712389037.

The spelling of 2149542059 in words is "two billion, one hundred forty-nine million, five hundred forty-two thousand, fifty-nine".