1145266215 has 16 divisors (see below), whose sum is σ = 1835222400. Its totient is φ = 609876512.

The previous prime is 1145266207. The next prime is 1145266219. The reversal of 1145266215 is 5126625411.

It is a cyclic number.

It is not a de Polignac number, because 1145266215 - 2³ = 1145266207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145266219) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 48045 + ... + 67814.

It is an arithmetic number, because the mean of its divisors is an integer number (114701400).

Almost surely, 2^1145266215 is an apocalyptic number.

1145266215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145266215 is a deficient number, since it is larger than the sum of its proper divisors (689956185).

1145266215 is a wasteful number, since it uses less digits than its factorization.

1145266215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116526.

The product of its digits is 14400, while the sum is 33.

The square root of 1145266215 is about 33841.7820896004. The cubic root of 1145266215 is about 1046.2500291906.

The spelling of 1145266215 in words is "one billion, one hundred forty-five million, two hundred sixty-six thousand, two hundred fifteen".