142757093 has 4 divisors (see below), whose sum is σ = 143082720. Its totient is φ = 142431468.

The previous prime is 142757059. The next prime is 142757099. The reversal of 142757093 is 390757241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 390757241 = 7 ⋅55822463.

It is a cyclic number.

It is not a de Polignac number, because 142757093 - 2¹⁰ = 142756069 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 (142757099) 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 3 ways as a sum of consecutive naturals, for example, 162155 + ... + 163032.

It is an arithmetic number, because the mean of its divisors is an integer number (35770680).

Almost surely, 2^142757093 is an apocalyptic number.

It is an amenable number.

142757093 is a deficient number, since it is larger than the sum of its proper divisors (325627).

142757093 is an equidigital number, since it uses as much as digits as its factorization.

142757093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325626.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 142757093 is about 11948.0999744729. The cubic root of 142757093 is about 522.6358924028.

The spelling of 142757093 in words is "one hundred forty-two million, seven hundred fifty-seven thousand, ninety-three".