142351243 has 4 divisors (see below), whose sum is σ = 142491960. Its totient is φ = 142210528.

The previous prime is 142351219. The next prime is 142351259. The reversal of 142351243 is 342153241.

142351243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142351243 - 2²¹ = 140254091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142351843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68830 + ... + 70867.

It is an arithmetic number, because the mean of its divisors is an integer number (35622990).

Almost surely, 2^142351243 is an apocalyptic number.

142351243 is a deficient number, since it is larger than the sum of its proper divisors (140717).

142351243 is a wasteful number, since it uses less digits than its factorization.

142351243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140716.

The product of its digits is 2880, while the sum is 25.

The square root of 142351243 is about 11931.1040142981. The cubic root of 142351243 is about 522.1401479704.

The spelling of 142351243 in words is "one hundred forty-two million, three hundred fifty-one thousand, two hundred forty-three".