142390765 has 8 divisors (see below), whose sum is σ = 186402528. Its totient is φ = 103556880.

The previous prime is 142390757. The next prime is 142390811. The reversal of 142390765 is 567093241.

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

It is not a de Polignac number, because 142390765 - 2³ = 142390757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294407 + ... + 1294516.

It is an arithmetic number, because the mean of its divisors is an integer number (23300316).

Almost surely, 2^142390765 is an apocalyptic number.

It is an amenable number.

142390765 is a deficient number, since it is larger than the sum of its proper divisors (44011763).

142390765 is a wasteful number, since it uses less digits than its factorization.

142390765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588939.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 142390765 is about 11932.7601584881. The cubic root of 142390765 is about 522.1884653414.

The spelling of 142390765 in words is "one hundred forty-two million, three hundred ninety thousand, seven hundred sixty-five".