1291192583 has 2 divisors, whose sum is σ = 1291192584. Its totient is φ = 1291192582.

The previous prime is 1291192547. The next prime is 1291192603. The reversal of 1291192583 is 3852911921.

It is a strong prime.

It is an emirp because it is prime and its reverse (3852911921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1291192583 - 2⁸ = 1291192327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1291192583.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1291192183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645596291 + 645596292.

It is an arithmetic number, because the mean of its divisors is an integer number (645596292).

Almost surely, 2^1291192583 is an apocalyptic number.

1291192583 is a deficient number, since it is larger than the sum of its proper divisors (1).

1291192583 is an equidigital number, since it uses as much as digits as its factorization.

1291192583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 41.

The square root of 1291192583 is about 35933.1682850260. The cubic root of 1291192583 is about 1088.9225902410.

The spelling of 1291192583 in words is "one billion, two hundred ninety-one million, one hundred ninety-two thousand, five hundred eighty-three".