1145545211 has 8 divisors (see below), whose sum is σ = 1186046400. Its totient is φ = 1105110720.

The previous prime is 1145545189. The next prime is 1145545217. The reversal of 1145545211 is 1125455411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145545211 - 2¹⁴ = 1145528827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145545217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19655 + ... + 51743.

It is an arithmetic number, because the mean of its divisors is an integer number (148255800).

Almost surely, 2^1145545211 is an apocalyptic number.

1145545211 is a deficient number, since it is larger than the sum of its proper divisors (40501189).

1145545211 is a wasteful number, since it uses less digits than its factorization.

1145545211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33349.

The product of its digits is 4000, while the sum is 29.

The square root of 1145545211 is about 33845.9039028359. The cubic root of 1145545211 is about 1046.3349805813.

The spelling of 1145545211 in words is "one billion, one hundred forty-five million, five hundred forty-five thousand, two hundred eleven".