142922235493 has 4 divisors (see below), whose sum is σ = 143346337420. Its totient is φ = 142498133568.

The previous prime is 142922235481. The next prime is 142922235523. The reversal of 142922235493 is 394532229241.

It is the 154339-th star number.

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 48047763204 + 94874472289 = 219198^2 + 308017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142922235493 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 (142922235413) 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, 212050458 + ... + 212051131.

It is an arithmetic number, because the mean of its divisors is an integer number (35836584355).

Almost surely, 2^142922235493 is an apocalyptic number.

It is an amenable number.

142922235493 is a deficient number, since it is larger than the sum of its proper divisors (424101927).

142922235493 is an equidigital number, since it uses as much as digits as its factorization.

142922235493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424101926.

The product of its digits is 933120, while the sum is 46.

The spelling of 142922235493 in words is "one hundred forty-two billion, nine hundred twenty-two million, two hundred thirty-five thousand, four hundred ninety-three".