1145246855 has 4 divisors (see below), whose sum is σ = 1374296232. Its totient is φ = 916197480.

The previous prime is 1145246807. The next prime is 1145246863. The reversal of 1145246855 is 5586425411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1145246855 - 2²² = 1141052551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114524681 + ... + 114524690.

It is an arithmetic number, because the mean of its divisors is an integer number (343574058).

Almost surely, 2^1145246855 is an apocalyptic number.

1145246855 is a deficient number, since it is larger than the sum of its proper divisors (229049377).

1145246855 is an equidigital number, since it uses as much as digits as its factorization.

1145246855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229049376.

The product of its digits is 192000, while the sum is 41.

The square root of 1145246855 is about 33841.4960514455. The cubic root of 1145246855 is about 1046.2441337593.

The spelling of 1145246855 in words is "one billion, one hundred forty-five million, two hundred forty-six thousand, eight hundred fifty-five".