2919121109137 has 2 divisors, whose sum is σ = 2919121109138. Its totient is φ = 2919121109136.

The previous prime is 2919121109117. The next prime is 2919121109161. The reversal of 2919121109137 is 7319011219192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2627611822081 + 291509287056 = 1620991^2 + 539916^2 .

It is a cyclic number.

It is not a de Polignac number, because 2919121109137 - 2²³ = 2919112720529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2919121109117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1459560554568 + 1459560554569.

It is an arithmetic number, because the mean of its divisors is an integer number (1459560554569).

Almost surely, 2^{2919121109137} is an apocalyptic number.

It is an amenable number.

2919121109137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2919121109137 is an equidigital number, since it uses as much as digits as its factorization.

2919121109137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 46.

The spelling of 2919121109137 in words is "two trillion, nine hundred nineteen billion, one hundred twenty-one million, one hundred nine thousand, one hundred thirty-seven".