1145531214 has 32 divisors (see below), whose sum is σ = 2547634080. Its totient is φ = 381542400.

The previous prime is 1145531207. The next prime is 1145531263. The reversal of 1145531214 is 4121355411.

1145531214 is a `hidden beast` number, since 114 + 5 + 531 + 2 + 14 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66894 + ... + 82254.

It is an arithmetic number, because the mean of its divisors is an integer number (79613565).

Almost surely, 2^1145531214 is an apocalyptic number.

1145531214 is an abundant number, since it is smaller than the sum of its proper divisors (1402102866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145531214 is a wasteful number, since it uses less digits than its factorization.

1145531214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16753 (or 16747 counting only the distinct ones).

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

The square root of 1145531214 is about 33845.6971268136. The cubic root of 1145531214 is about 1046.3307189685.

Adding to 1145531214 its reverse (4121355411), we get a palindrome (5266886625).

The spelling of 1145531214 in words is "one billion, one hundred forty-five million, five hundred thirty-one thousand, two hundred fourteen".