1155417983 has 2 divisors, whose sum is σ = 1155417984. Its totient is φ = 1155417982.

The previous prime is 1155417979. The next prime is 1155417997. The reversal of 1155417983 is 3897145511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155417983 - 2² = 1155417979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155417973) 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, 577708991 + 577708992.

It is an arithmetic number, because the mean of its divisors is an integer number (577708992).

Almost surely, 2^1155417983 is an apocalyptic number.

1155417983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155417983 is an equidigital number, since it uses as much as digits as its factorization.

1155417983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 44.

The square root of 1155417983 is about 33991.4398488796. The cubic root of 1155417983 is about 1049.3322990023.

The spelling of 1155417983 in words is "one billion, one hundred fifty-five million, four hundred seventeen thousand, nine hundred eighty-three".