142174521074213 has 4 divisors (see below), whose sum is σ = 142178447607180. Its totient is φ = 142170594541248.

The previous prime is 142174521074167. The next prime is 142174521074231. The reversal of 142174521074213 is 312470125471241.

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 69428923089604 + 72745597984609 = 8332402^2 + 8529103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142174521074213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142174521071213) 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, 1963212170 + ... + 1963284587.

It is an arithmetic number, because the mean of its divisors is an integer number (35544611901795).

Almost surely, 2^{142174521074213} is an apocalyptic number.

It is an amenable number.

142174521074213 is a deficient number, since it is larger than the sum of its proper divisors (3926532967).

142174521074213 is an equidigital number, since it uses as much as digits as its factorization.

142174521074213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926532966.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 142174521074213 in words is "one hundred forty-two trillion, one hundred seventy-four billion, five hundred twenty-one million, seventy-four thousand, two hundred thirteen".