1145245311 has 40 divisors (see below), whose sum is σ = 2058122880. Its totient is φ = 619976592.

The previous prime is 1145245303. The next prime is 1145245337. The reversal of 1145245311 is 1135425411.

It is not a de Polignac number, because 1145245311 - 2³ = 1145245303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145245391) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42381 + ... + 63926.

It is an arithmetic number, because the mean of its divisors is an integer number (51453072).

Almost surely, 2^1145245311 is an apocalyptic number.

1145245311 is a deficient number, since it is larger than the sum of its proper divisors (912877569).

1145245311 is a wasteful number, since it uses less digits than its factorization.

1145245311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106345 (or 106336 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1145245311 is about 33841.4732392075. The cubic root of 1145245311 is about 1046.2436635836.

It can be divided in two parts, 114 and 5245311, that added together give a palindrome (5245425).

The spelling of 1145245311 in words is "one billion, one hundred forty-five million, two hundred forty-five thousand, three hundred eleven".