1147215983 has 2 divisors, whose sum is σ = 1147215984. Its totient is φ = 1147215982.

The previous prime is 1147215917. The next prime is 1147216027. The reversal of 1147215983 is 3895127411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1147215983 is a prime.

It is a super-2 number, since 2×1147215983² = 2632209023301312578, 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 1147215983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147215583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573607991 + 573607992.

It is an arithmetic number, because the mean of its divisors is an integer number (573607992).

Almost surely, 2^1147215983 is an apocalyptic number.

1147215983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147215983 is an equidigital number, since it uses as much as digits as its factorization.

1147215983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 41.

The square root of 1147215983 is about 33870.5769510943. The cubic root of 1147215983 is about 1046.8434249308.

The spelling of 1147215983 in words is "one billion, one hundred forty-seven million, two hundred fifteen thousand, nine hundred eighty-three".