2130764491 has 2 divisors, whose sum is σ = 2130764492. Its totient is φ = 2130764490.

The previous prime is 2130764407. The next prime is 2130764539. The reversal of 2130764491 is 1944670312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2130764491 - 2²³ = 2122375883 is a prime.

It is a super-2 number, since 2×2130764491² = 9080314632212978162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2130764491.

It is not a weakly prime, because it can be changed into another prime (2130764191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065382245 + 1065382246.

It is an arithmetic number, because the mean of its divisors is an integer number (1065382246).

Almost surely, 2^2130764491 is an apocalyptic number.

2130764491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130764491 is an equidigital number, since it uses as much as digits as its factorization.

2130764491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 2130764491 is about 46160.2046247631. The cubic root of 2130764491 is about 1286.8022656882.

The spelling of 2130764491 in words is "two billion, one hundred thirty million, seven hundred sixty-four thousand, four hundred ninety-one".