142736593 has 2 divisors, whose sum is σ = 142736594. Its totient is φ = 142736592.

The previous prime is 142736549. The next prime is 142736623. The reversal of 142736593 is 395637241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115519504 + 27217089 = 10748^2 + 5217^2 .

It is an emirp because it is prime and its reverse (395637241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142736593 is a prime.

It is equal to p_8057974 and since 142736593 and 8057974 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (142736543) 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, 71368296 + 71368297.

It is an arithmetic number, because the mean of its divisors is an integer number (71368297).

Almost surely, 2^142736593 is an apocalyptic number.

It is an amenable number.

142736593 is a deficient number, since it is larger than the sum of its proper divisors (1).

142736593 is an equidigital number, since it uses as much as digits as its factorization.

142736593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 142736593 is about 11947.2420666864. The cubic root of 142736593 is about 522.6108742678.

The spelling of 142736593 in words is "one hundred forty-two million, seven hundred thirty-six thousand, five hundred ninety-three".