1145501441 has 4 divisors (see below), whose sum is σ = 1309144512. Its totient is φ = 981858372.

The previous prime is 1145501387. The next prime is 1145501449. The reversal of 1145501441 is 1441055411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1145501441 - 2²² = 1141307137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145501441.

It is not an unprimeable number, because it can be changed into a prime (1145501449) 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, 81821525 + ... + 81821538.

It is an arithmetic number, because the mean of its divisors is an integer number (327286128).

Almost surely, 2^1145501441 is an apocalyptic number.

It is an amenable number.

1145501441 is a deficient number, since it is larger than the sum of its proper divisors (163643071).

1145501441 is an equidigital number, since it uses as much as digits as its factorization.

1145501441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163643070.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 1145501441 is about 33845.2572896115. The cubic root of 1145501441 is about 1046.3216539822.

Adding to 1145501441 its reverse (1441055411), we get a palindrome (2586556852).

The spelling of 1145501441 in words is "one billion, one hundred forty-five million, five hundred one thousand, four hundred forty-one".