142765739 has 2 divisors, whose sum is σ = 142765740. Its totient is φ = 142765738.

The previous prime is 142765673. The next prime is 142765751. The reversal of 142765739 is 937567241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142765739 - 2²⁴ = 125988523 is a prime.

It is a super-2 number, since 2×142765739² = 40764112464432242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142765739.

It is not a weakly prime, because it can be changed into another prime (142765759) 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 as a sum of consecutive naturals, namely, 71382869 + 71382870.

It is an arithmetic number, because the mean of its divisors is an integer number (71382870).

Almost surely, 2^142765739 is an apocalyptic number.

142765739 is a deficient number, since it is larger than the sum of its proper divisors (1).

142765739 is an equidigital number, since it uses as much as digits as its factorization.

142765739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 142765739 is about 11948.4617838448. The cubic root of 142765739 is about 522.6464432357.

The spelling of 142765739 in words is "one hundred forty-two million, seven hundred sixty-five thousand, seven hundred thirty-nine".