2091939127 has 2 divisors, whose sum is σ = 2091939128. Its totient is φ = 2091939126.

The previous prime is 2091939107. The next prime is 2091939133. The reversal of 2091939127 is 7219391902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2091939127 - 2¹⁹ = 2091414839 is a prime.

It is a super-2 number, since 2×2091939127² = 8752418622147044258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2091939107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045969563 + 1045969564.

It is an arithmetic number, because the mean of its divisors is an integer number (1045969564).

Almost surely, 2^2091939127 is an apocalyptic number.

2091939127 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091939127 is an equidigital number, since it uses as much as digits as its factorization.

2091939127 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 43.

The square root of 2091939127 is about 45737.7210516659. The cubic root of 2091939127 is about 1278.9385583145.

The spelling of 2091939127 in words is "two billion, ninety-one million, nine hundred thirty-nine thousand, one hundred twenty-seven".