142309664 has 48 divisors (see below), whose sum is σ = 326265408. Its totient is φ = 59834112.

The previous prime is 142309649. The next prime is 142309681. The reversal of 142309664 is 466903241.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5879 + ... + 17865.

It is an arithmetic number, because the mean of its divisors is an integer number (6797196).

Almost surely, 2^142309664 is an apocalyptic number.

142309664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142309664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163132704).

142309664 is an abundant number, since it is smaller than the sum of its proper divisors (183955744).

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

142309664 is a wasteful number, since it uses less digits than its factorization.

142309664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057 (or 12049 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 142309664 is about 11929.3614246530. The cubic root of 142309664 is about 522.0893061727.

The spelling of 142309664 in words is "one hundred forty-two million, three hundred nine thousand, six hundred sixty-four".