142693293 has 8 divisors (see below), whose sum is σ = 190878688. Its totient is φ = 94818384.

The previous prime is 142693289. The next prime is 142693303. The reversal of 142693293 is 392396241.

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

It is not a de Polignac number, because 142693293 - 2² = 142693289 is a prime.

It is a super-2 number, since 2×142693293² = 40722751734367698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142693193) 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, 76546 + ... + 78387.

It is an arithmetic number, because the mean of its divisors is an integer number (23859836).

Almost surely, 2^142693293 is an apocalyptic number.

It is an amenable number.

142693293 is a deficient number, since it is larger than the sum of its proper divisors (48185395).

142693293 is a wasteful number, since it uses less digits than its factorization.

142693293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155243.

The product of its digits is 69984, while the sum is 39.

The square root of 142693293 is about 11945.4297955327. The cubic root of 142693293 is about 522.5580232107.

The spelling of 142693293 in words is "one hundred forty-two million, six hundred ninety-three thousand, two hundred ninety-three".