1145345313 has 16 divisors (see below), whose sum is σ = 1801588736. Its totient is φ = 633370320.

The previous prime is 1145345263. The next prime is 1145345321. The reversal of 1145345313 is 3135435411.

It is not a de Polignac number, because 1145345313 - 2²⁰ = 1144296737 is a prime.

It is a super-2 number, since 2×1145345313² = 2623631772022135938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145345413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879031 + ... + 880332.

It is an arithmetic number, because the mean of its divisors is an integer number (112599296).

Almost surely, 2^1145345313 is an apocalyptic number.

It is an amenable number.

1145345313 is a deficient number, since it is larger than the sum of its proper divisors (656243423).

1145345313 is a wasteful number, since it uses less digits than its factorization.

1145345313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759404.

The product of its digits is 10800, while the sum is 30.

The square root of 1145345313 is about 33842.9507135533. The cubic root of 1145345313 is about 1046.2741151130.

The spelling of 1145345313 in words is "one billion, one hundred forty-five million, three hundred forty-five thousand, three hundred thirteen".