142064709 has 16 divisors (see below), whose sum is σ = 192384192. Its totient is φ = 93235968.

The previous prime is 142064693. The next prime is 142064711. The reversal of 142064709 is 907460241.

It is a happy number.

It is not a de Polignac number, because 142064709 - 2⁴ = 142064693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142064709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142064749) 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, 83067 + ... + 84759.

It is an arithmetic number, because the mean of its divisors is an integer number (12024012).

Almost surely, 2^142064709 is an apocalyptic number.

It is an amenable number.

142064709 is a deficient number, since it is larger than the sum of its proper divisors (50319483).

142064709 is a wasteful number, since it uses less digits than its factorization.

142064709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 142064709 is about 11919.0901078899. The cubic root of 142064709 is about 521.7895799046.

It can be divided in two parts, 14206 and 4709, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 142064709 in words is "one hundred forty-two million, sixty-four thousand, seven hundred nine".