2940187291 has 2 divisors, whose sum is σ = 2940187292. Its totient is φ = 2940187290.

The previous prime is 2940187253. The next prime is 2940187337. The reversal of 2940187291 is 1927810492.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2940187291 is a prime.

It is not a weakly prime, because it can be changed into another prime (2940187231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1470093645 + 1470093646.

It is an arithmetic number, because the mean of its divisors is an integer number (1470093646).

Almost surely, 2^2940187291 is an apocalyptic number.

2940187291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2940187291 is an equidigital number, since it uses as much as digits as its factorization.

2940187291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 2940187291 is about 54223.4939025511. The cubic root of 2940187291 is about 1432.6001710279.

The spelling of 2940187291 in words is "two billion, nine hundred forty million, one hundred eighty-seven thousand, two hundred ninety-one".