142765741 has 4 divisors (see below), whose sum is σ = 143554684. Its totient is φ = 141976800.

The previous prime is 142765739. The next prime is 142765751. The reversal of 142765741 is 147567241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9455625 + 133310116 = 3075^2 + 11546^2 .

It is a cyclic number.

It is not a de Polignac number, because 142765741 - 2¹ = 142765739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142765741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142765751) 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 3 ways as a sum of consecutive naturals, for example, 394200 + ... + 394561.

It is an arithmetic number, because the mean of its divisors is an integer number (35888671).

Almost surely, 2^142765741 is an apocalyptic number.

It is an amenable number.

142765741 is a deficient number, since it is larger than the sum of its proper divisors (788943).

142765741 is an equidigital number, since it uses as much as digits as its factorization.

142765741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788942.

The product of its digits is 47040, while the sum is 37.

The square root of 142765741 is about 11948.4618675376. The cubic root of 142765741 is about 522.6464456763.

The spelling of 142765741 in words is "one hundred forty-two million, seven hundred sixty-five thousand, seven hundred forty-one".