2042953161 has 4 divisors (see below), whose sum is σ = 2723937552. Its totient is φ = 1361968772.

The previous prime is 2042953153. The next prime is 2042953217. The reversal of 2042953161 is 1613592402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2042953161 - 2³ = 2042953153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2042953151) 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, 340492191 + ... + 340492196.

It is an arithmetic number, because the mean of its divisors is an integer number (680984388).

Almost surely, 2^2042953161 is an apocalyptic number.

It is an amenable number.

2042953161 is a deficient number, since it is larger than the sum of its proper divisors (680984391).

2042953161 is an equidigital number, since it uses as much as digits as its factorization.

2042953161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680984390.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2042953161 is about 45199.0393813851. The cubic root of 2042953161 is about 1268.8768380204.

The spelling of 2042953161 in words is "two billion, forty-two million, nine hundred fifty-three thousand, one hundred sixty-one".