1214451143505 has 24 divisors (see below), whose sum is σ = 2105106155880. Its totient is φ = 647689582080.

The previous prime is 1214451143491. The next prime is 1214451143539. The reversal of 1214451143505 is 5053411544121.

1214451143505 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 4 + 5 + 1 + 143 + 505 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10829316096 + 1203621827409 = 104064^2 + 1097097^2 .

It is not a de Polignac number, because 1214451143505 - 2¹⁵ = 1214451110737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1214451143505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1388985 + ... + 2087625.

It is an arithmetic number, because the mean of its divisors is an integer number (87712756495).

Almost surely, 2^{1214451143505} is an apocalyptic number.

1214451143505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1214451143505 is a deficient number, since it is larger than the sum of its proper divisors (890655012375).

1214451143505 is a wasteful number, since it uses less digits than its factorization.

1214451143505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737281 (or 737278 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 1214451143505 its reverse (5053411544121), we get a palindrome (6267862687626).

The spelling of 1214451143505 in words is "one trillion, two hundred fourteen billion, four hundred fifty-one million, one hundred forty-three thousand, five hundred five".