1214452453540 has 96 divisors (see below), whose sum is σ = 2738173261824. Its totient is φ = 450808934400.

The previous prime is 1214452453483. The next prime is 1214452453549. The reversal of 1214452453540 is 453542544121.

It is a junction number, because it is equal to n+sod(n) for n = 1214452453493 and 1214452453502.

It is not an unprimeable number, because it can be changed into a prime (1214452453549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132707965 + ... + 132717115.

It is an arithmetic number, because the mean of its divisors is an integer number (28522638144).

Almost surely, 2^{1214452453540} is an apocalyptic number.

1214452453540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214452453540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1369086630912).

1214452453540 is an abundant number, since it is smaller than the sum of its proper divisors (1523720808284).

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

1214452453540 is a wasteful number, since it uses less digits than its factorization.

1214452453540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14597 (or 14595 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 1214452453540 its reverse (453542544121), we get a palindrome (1667994997661).

The spelling of 1214452453540 in words is "one trillion, two hundred fourteen billion, four hundred fifty-two million, four hundred fifty-three thousand, five hundred forty".