2942161493 has 4 divisors (see below), whose sum is σ = 2997674028. Its totient is φ = 2886648960.

The previous prime is 2942161483. The next prime is 2942161511. The reversal of 2942161493 is 3941612492.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1551020689 + 1391140804 = 39383^2 + 37298^2 .

It is a cyclic number.

It is not a de Polignac number, because 2942161493 - 2⁴ = 2942161477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2942161493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942161483) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27756188 + ... + 27756293.

It is an arithmetic number, because the mean of its divisors is an integer number (749418507).

Almost surely, 2^2942161493 is an apocalyptic number.

It is an amenable number.

2942161493 is a deficient number, since it is larger than the sum of its proper divisors (55512535).

2942161493 is an equidigital number, since it uses as much as digits as its factorization.

2942161493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55512534.

The product of its digits is 93312, while the sum is 41.

The square root of 2942161493 is about 54241.6951523457. The cubic root of 2942161493 is about 1432.9207412351.

The spelling of 2942161493 in words is "two billion, nine hundred forty-two million, one hundred sixty-one thousand, four hundred ninety-three".