1845135979 has 2 divisors, whose sum is σ = 1845135980. Its totient is φ = 1845135978.

The previous prime is 1845135949. The next prime is 1845135983. The reversal of 1845135979 is 9795315481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1845135979 - 2²⁵ = 1811581547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1845135949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922567989 + 922567990.

It is an arithmetic number, because the mean of its divisors is an integer number (922567990).

Almost surely, 2^1845135979 is an apocalyptic number.

1845135979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1845135979 is an equidigital number, since it uses as much as digits as its factorization.

1845135979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 52.

The square root of 1845135979 is about 42955.0460248851. The cubic root of 1845135979 is about 1226.5242121595.

The spelling of 1845135979 in words is "one billion, eight hundred forty-five million, one hundred thirty-five thousand, nine hundred seventy-nine".