1146965513 has 4 divisors (see below), whose sum is σ = 1151724948. Its totient is φ = 1142206080.

The previous prime is 1146965509. The next prime is 1146965551. The reversal of 1146965513 is 3155696411.

1146965513 = 23947² + 23948².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3155696411 = 7 ⋅450813773.

It can be written as a sum of positive squares in 2 ways, for example, as 573506704 + 573458809 = 23948^2 + 23947^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146965513 - 2² = 1146965509 is a prime.

It is a super-2 number, since 2×1146965513² = 2631059776022706338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1146965593) 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, 2379356 + ... + 2379837.

It is an arithmetic number, because the mean of its divisors is an integer number (287931237).

Almost surely, 2^1146965513 is an apocalyptic number.

1146965513 is the 23948-th centered square number.

It is an amenable number.

1146965513 is a deficient number, since it is larger than the sum of its proper divisors (4759435).

1146965513 is an equidigital number, since it uses as much as digits as its factorization.

1146965513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759434.

The product of its digits is 97200, while the sum is 41.

The square root of 1146965513 is about 33866.8792923115. The cubic root of 1146965513 is about 1046.7672341173.

The spelling of 1146965513 in words is "one billion, one hundred forty-six million, nine hundred sixty-five thousand, five hundred thirteen".