1145315255 has 32 divisors (see below), whose sum is σ = 1593295488. Its totient is φ = 774144000.

The previous prime is 1145315239. The next prime is 1145315263. The reversal of 1145315255 is 5525135411.

It is not a de Polignac number, because 1145315255 - 2⁴ = 1145315239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 992759 + ... + 993911.

It is an arithmetic number, because the mean of its divisors is an integer number (49790484).

Almost surely, 2^1145315255 is an apocalyptic number.

1145315255 is a deficient number, since it is larger than the sum of its proper divisors (447980233).

1145315255 is a wasteful number, since it uses less digits than its factorization.

1145315255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547.

The product of its digits is 15000, while the sum is 32.

The square root of 1145315255 is about 33842.5066299765. The cubic root of 1145315255 is about 1046.2649623617.

The spelling of 1145315255 in words is "one billion, one hundred forty-five million, three hundred fifteen thousand, two hundred fifty-five".