142997929393 has 8 divisors (see below), whose sum is σ = 156030386400. Its totient is φ = 129970913280.

The previous prime is 142997929391. The next prime is 142997929397. The reversal of 142997929393 is 393929799241.

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

It is a cyclic number.

It is not a de Polignac number, because 142997929393 - 2¹ = 142997929391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142997929391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1305168 + ... + 1410481.

It is an arithmetic number, because the mean of its divisors is an integer number (19503798300).

Almost surely, 2^142997929393 is an apocalyptic number.

It is an amenable number.

142997929393 is a deficient number, since it is larger than the sum of its proper divisors (13032457007).

142997929393 is a wasteful number, since it uses less digits than its factorization.

142997929393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720447.

The product of its digits is 59521392, while the sum is 67.

The spelling of 142997929393 in words is "one hundred forty-two billion, nine hundred ninety-seven million, nine hundred twenty-nine thousand, three hundred ninety-three".