1145312115 has 32 divisors (see below), whose sum is σ = 1931243520. Its totient is φ = 577995264.

The previous prime is 1145312101. The next prime is 1145312123. The reversal of 1145312115 is 5112135411.

It is not a de Polignac number, because 1145312115 - 2⁸ = 1145311859 is a prime.

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, 307947 + ... + 311643.

It is an arithmetic number, because the mean of its divisors is an integer number (60351360).

Almost surely, 2^1145312115 is an apocalyptic number.

1145312115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145312115 is a deficient number, since it is larger than the sum of its proper divisors (785931405).

1145312115 is a wasteful number, since it uses less digits than its factorization.

1145312115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811.

The product of its digits is 600, while the sum is 24.

The square root of 1145312115 is about 33842.4602385819. The cubic root of 1145312115 is about 1046.2640062130.

Adding to 1145312115 its reverse (5112135411), we get a palindrome (6257447526).

The spelling of 1145312115 in words is "one billion, one hundred forty-five million, three hundred twelve thousand, one hundred fifteen".