1214455100605 has 4 divisors (see below), whose sum is σ = 1457346120732. Its totient is φ = 971564080480.

The previous prime is 1214455100543. The next prime is 1214455100609. The reversal of 1214455100605 is 5060015544121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 967284052036 + 247171048569 = 983506^2 + 497163^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1214455100605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214455100609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121445510056 + ... + 121445510065.

It is an arithmetic number, because the mean of its divisors is an integer number (364336530183).

Almost surely, 2^{1214455100605} is an apocalyptic number.

It is an amenable number.

1214455100605 is a deficient number, since it is larger than the sum of its proper divisors (242891020127).

1214455100605 is an equidigital number, since it uses as much as digits as its factorization.

1214455100605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242891020126.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 1214455100605 in words is "one trillion, two hundred fourteen billion, four hundred fifty-five million, one hundred thousand, six hundred five".