1145015320 has 32 divisors (see below), whose sum is σ = 2645917200. Its totient is φ = 445627008.

The previous prime is 1145015317. The next prime is 1145015321. The reversal of 1145015320 is 235105411.

It is a happy number.

It is a super-2 number, since 2×1145015320² = 2622120166069404800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1145015291 and 1145015300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145015321) 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 7 ways as a sum of consecutive naturals, for example, 385350 + ... + 388309.

Almost surely, 2^1145015320 is an apocalyptic number.

1145015320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145015320 is an abundant number, since it is smaller than the sum of its proper divisors (1500901880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145015320 is a wasteful number, since it uses less digits than its factorization.

1145015320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773707 (or 773703 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1145015320 is about 33838.0750043498. The cubic root of 1145015320 is about 1046.1736224802.

Subtracting from 1145015320 its reverse (235105411), we obtain a palindrome (909909909).

The spelling of 1145015320 in words is "one billion, one hundred forty-five million, fifteen thousand, three hundred twenty".