1155249463 has 2 divisors, whose sum is σ = 1155249464. Its totient is φ = 1155249462.

The previous prime is 1155249439. The next prime is 1155249479. The reversal of 1155249463 is 3649425511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155249463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155244463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577624731 + 577624732.

It is an arithmetic number, because the mean of its divisors is an integer number (577624732).

Almost surely, 2^1155249463 is an apocalyptic number.

1155249463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155249463 is an equidigital number, since it uses as much as digits as its factorization.

1155249463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The square root of 1155249463 is about 33988.9608990919. The cubic root of 1155249463 is about 1049.2812807909.

The spelling of 1155249463 in words is "one billion, one hundred fifty-five million, two hundred forty-nine thousand, four hundred sixty-three".