1205145342854 has 8 divisors (see below), whose sum is σ = 1807887960480. Its totient is φ = 602516022696.

The previous prime is 1205145342853. The next prime is 1205145342889. The reversal of 1205145342854 is 4582435415021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205145342853) 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, 28297769 + ... + 28340324.

It is an arithmetic number, because the mean of its divisors is an integer number (225985995060).

Almost surely, 2^{1205145342854} is an apocalyptic number.

1205145342854 is a deficient number, since it is larger than the sum of its proper divisors (602742617626).

1205145342854 is a wasteful number, since it uses less digits than its factorization.

1205145342854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56648734.

The product of its (nonzero) digits is 768000, while the sum is 44.

The spelling of 1205145342854 in words is "one trillion, two hundred five billion, one hundred forty-five million, three hundred forty-two thousand, eight hundred fifty-four".