1145084852821 has 24 divisors (see below), whose sum is σ = 1434683572224. Its totient is φ = 905886465120.

The previous prime is 1145084852773. The next prime is 1145084852869. The reversal of 1145084852821 is 1282584805411.

It is an interprime number because it is at equal distance from previous prime (1145084852773) and next prime (1145084852869).

It is not a de Polignac number, because 1145084852821 - 2¹⁵ = 1145084820053 is a prime.

It is a super-2 number, since 2×1145084852821² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145084852881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5107936 + ... + 5327398.

It is an arithmetic number, because the mean of its divisors is an integer number (59778482176).

Almost surely, 2^{1145084852821} is an apocalyptic number.

It is an amenable number.

1145084852821 is a deficient number, since it is larger than the sum of its proper divisors (289598719403).

1145084852821 is a wasteful number, since it uses less digits than its factorization.

1145084852821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227681 (or 227674 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 49.

The spelling of 1145084852821 in words is "one trillion, one hundred forty-five billion, eighty-four million, eight hundred fifty-two thousand, eight hundred twenty-one".