142357243 has 8 divisors (see below), whose sum is σ = 163376640. Its totient is φ = 121508520.

The previous prime is 142357217. The next prime is 142357283. The reversal of 142357243 is 342753241.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-142357243 is a prime.

It is a super-2 number, since 2×142357243² = 40531169269122098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142357283) 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, 40873 + ... + 44218.

It is an arithmetic number, because the mean of its divisors is an integer number (20422080).

Almost surely, 2^142357243 is an apocalyptic number.

142357243 is a deficient number, since it is larger than the sum of its proper divisors (21019397).

142357243 is an equidigital number, since it uses as much as digits as its factorization.

142357243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85337.

The product of its digits is 20160, while the sum is 31.

The square root of 142357243 is about 11931.3554552700. The cubic root of 142357243 is about 522.1474838082.

The spelling of 142357243 in words is "one hundred forty-two million, three hundred fifty-seven thousand, two hundred forty-three".