142243371 has 20 divisors (see below), whose sum is σ = 215186400. Its totient is φ = 93624336.

The previous prime is 142243363. The next prime is 142243379. The reversal of 142243371 is 173342241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142243363) and next prime (142243379).

It is not a de Polignac number, because 142243371 - 2³ = 142243363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (142243379) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4716 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (10759320).

Almost surely, 2^142243371 is an apocalyptic number.

142243371 is a deficient number, since it is larger than the sum of its proper divisors (72943029).

142243371 is an equidigital number, since it uses as much as digits as its factorization.

142243371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22320 (or 22311 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 142243371 is about 11926.5825365022. The cubic root of 142243371 is about 522.0082242065.

The spelling of 142243371 in words is "one hundred forty-two million, two hundred forty-three thousand, three hundred seventy-one".