1145256355 has 4 divisors (see below), whose sum is σ = 1374307632. Its totient is φ = 916205080.

The previous prime is 1145256353. The next prime is 1145256373. The reversal of 1145256355 is 5536525411.

It is a happy number.

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

It is not a de Polignac number, because 1145256355 - 2¹ = 1145256353 is a prime.

It is a super-2 number, since 2×1145256355² = 2623224237335772050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145256353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114525631 + ... + 114525640.

It is an arithmetic number, because the mean of its divisors is an integer number (343576908).

Almost surely, 2^1145256355 is an apocalyptic number.

1145256355 is a deficient number, since it is larger than the sum of its proper divisors (229051277).

1145256355 is an equidigital number, since it uses as much as digits as its factorization.

1145256355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229051276.

The product of its digits is 90000, while the sum is 37.

The square root of 1145256355 is about 33841.6364113794. The cubic root of 1145256355 is about 1046.2470266703.

The spelling of 1145256355 in words is "one billion, one hundred forty-five million, two hundred fifty-six thousand, three hundred fifty-five".