142937893 has 16 divisors (see below), whose sum is σ = 179435520. Its totient is φ = 111020976.

The previous prime is 142937863. The next prime is 142937903. The reversal of 142937893 is 398739241.

It is a cyclic number.

It is not a de Polignac number, because 142937893 - 2⁹ = 142937381 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 (142937813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20305 + ... + 26422.

It is an arithmetic number, because the mean of its divisors is an integer number (11214720).

Almost surely, 2^142937893 is an apocalyptic number.

It is an amenable number.

142937893 is a deficient number, since it is larger than the sum of its proper divisors (36497627).

142937893 is a wasteful number, since it uses less digits than its factorization.

142937893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46776.

The product of its digits is 326592, while the sum is 46.

The square root of 142937893 is about 11955.6636369547. The cubic root of 142937893 is about 522.8564365084.

The spelling of 142937893 in words is "one hundred forty-two million, nine hundred thirty-seven thousand, eight hundred ninety-three".