1145052311 has 16 divisors (see below), whose sum is σ = 1264533984. Its totient is φ = 1030385664.

The previous prime is 1145052281. The next prime is 1145052317. The reversal of 1145052311 is 1132505411.

It is a cyclic number.

It is not a de Polignac number, because 1145052311 - 2⁶ = 1145052247 is a prime.

It is a super-2 number, since 2×1145052311² = 2622289589852881442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145052317) 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, 77711 + ... + 91263.

It is an arithmetic number, because the mean of its divisors is an integer number (79033374).

Almost surely, 2^1145052311 is an apocalyptic number.

1145052311 is a deficient number, since it is larger than the sum of its proper divisors (119481673).

1145052311 is a wasteful number, since it uses less digits than its factorization.

1145052311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13730.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1145052311 is about 33838.6215883567. The cubic root of 1145052311 is about 1046.1848882950.

Adding to 1145052311 its reverse (1132505411), we get a palindrome (2277557722).

The spelling of 1145052311 in words is "one billion, one hundred forty-five million, fifty-two thousand, three hundred eleven".