1145520863 has 2 divisors, whose sum is σ = 1145520864. Its totient is φ = 1145520862.

The previous prime is 1145520847. The next prime is 1145520923. The reversal of 1145520863 is 3680255411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1145520863 - 2⁴ = 1145520847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145520763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572760431 + 572760432.

It is an arithmetic number, because the mean of its divisors is an integer number (572760432).

Almost surely, 2^1145520863 is an apocalyptic number.

1145520863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145520863 is an equidigital number, since it uses as much as digits as its factorization.

1145520863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 1145520863 is about 33845.5442119048. The cubic root of 1145520863 is about 1046.3275674170.

The spelling of 1145520863 in words is "one billion, one hundred forty-five million, five hundred twenty thousand, eight hundred sixty-three".