142631223 has 8 divisors (see below), whose sum is σ = 217342848. Its totient is φ = 81503544.

The previous prime is 142631221. The next prime is 142631239. The reversal of 142631223 is 322136241.

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

It is not a de Polignac number, because 142631223 - 2¹ = 142631221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142631193 and 142631202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142631221) 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, 3395961 + ... + 3396002.

It is an arithmetic number, because the mean of its divisors is an integer number (27167856).

Almost surely, 2^142631223 is an apocalyptic number.

142631223 is a deficient number, since it is larger than the sum of its proper divisors (74711625).

142631223 is an equidigital number, since it uses as much as digits as its factorization.

142631223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6791973.

The product of its digits is 1728, while the sum is 24.

The square root of 142631223 is about 11942.8314481952. The cubic root of 142631223 is about 522.4822432402.

Adding to 142631223 its reverse (322136241), we get a palindrome (464767464).

The spelling of 142631223 in words is "one hundred forty-two million, six hundred thirty-one thousand, two hundred twenty-three".