142323747 has 12 divisors (see below), whose sum is σ = 198376584. Its totient is φ = 90756160.

The previous prime is 142323733. The next prime is 142323749. The reversal of 142323747 is 747323241.

It is not a de Polignac number, because 142323747 - 2¹⁶ = 142258211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142323749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43254 + ... + 46427.

It is an arithmetic number, because the mean of its divisors is an integer number (16531382).

Almost surely, 2^142323747 is an apocalyptic number.

142323747 is a deficient number, since it is larger than the sum of its proper divisors (56052837).

142323747 is an equidigital number, since it uses as much as digits as its factorization.

142323747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89730 (or 89707 counting only the distinct ones).

The product of its digits is 28224, while the sum is 33.

The square root of 142323747 is about 11929.9516763481. The cubic root of 142323747 is about 522.1065276342.

Adding to 142323747 its reverse (747323241), we get a palindrome (889646988).

The spelling of 142323747 in words is "one hundred forty-two million, three hundred twenty-three thousand, seven hundred forty-seven".