142390293 has 8 divisors (see below), whose sum is σ = 189912000. Its totient is φ = 94897728.

The previous prime is 142390291. The next prime is 142390321. The reversal of 142390293 is 392093241.

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

It is not a de Polignac number, because 142390293 - 2¹ = 142390291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142390291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9933 + ... + 19581.

It is an arithmetic number, because the mean of its divisors is an integer number (23739000).

Almost surely, 2^142390293 is an apocalyptic number.

It is an amenable number.

142390293 is a deficient number, since it is larger than the sum of its proper divisors (47521707).

142390293 is an equidigital number, since it uses as much as digits as its factorization.

142390293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14571.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 142390293 is about 11932.7403809854. The cubic root of 142390293 is about 522.1878883535.

The spelling of 142390293 in words is "one hundred forty-two million, three hundred ninety thousand, two hundred ninety-three".