1145403511 has 32 divisors (see below), whose sum is σ = 1376258688. Its totient is φ = 932904960.

The previous prime is 1145403503. The next prime is 1145403547. The reversal of 1145403511 is 1153045411.

It is a cyclic number.

It is not a de Polignac number, because 1145403511 - 2³ = 1145403503 is a prime.

It is a super-2 number, since 2×1145403511² = 2623898406022254242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145403911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3909081 + ... + 3909373.

It is an arithmetic number, because the mean of its divisors is an integer number (43008084).

Almost surely, 2^1145403511 is an apocalyptic number.

1145403511 is a deficient number, since it is larger than the sum of its proper divisors (230855177).

1145403511 is a wasteful number, since it uses less digits than its factorization.

1145403511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1145403511 is about 33843.8105271850. The cubic root of 1145403511 is about 1046.2918361237.

Adding to 1145403511 its reverse (1153045411), we get a palindrome (2298448922).

The spelling of 1145403511 in words is "one billion, one hundred forty-five million, four hundred three thousand, five hundred eleven".