142664236 has 48 divisors (see below), whose sum is σ = 308770560. Its totient is φ = 56704320.

The previous prime is 142664233. The next prime is 142664243. The reversal of 142664236 is 632466241.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (142664231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305 + ... + 17431.

It is an arithmetic number, because the mean of its divisors is an integer number (6432720).

Almost surely, 2^142664236 is an apocalyptic number.

It is an amenable number.

142664236 is an abundant number, since it is smaller than the sum of its proper divisors (166106324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142664236 is a wasteful number, since it uses less digits than its factorization.

142664236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13174 (or 13172 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 142664236 is about 11944.2134944081. The cubic root of 142664236 is about 522.5225508608.

The spelling of 142664236 in words is "one hundred forty-two million, six hundred sixty-four thousand, two hundred thirty-six".