142759469 has 2 divisors, whose sum is σ = 142759470. Its totient is φ = 142759468.

The previous prime is 142759423. The next prime is 142759501. The reversal of 142759469 is 964957241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128029225 + 14730244 = 11315^2 + 3838^2 .

It is a cyclic number.

It is not a de Polignac number, because 142759469 - 2⁸ = 142759213 is a prime.

It is a super-2 number, since 2×142759469² = 40760531978323922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142759769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71379734 + 71379735.

It is an arithmetic number, because the mean of its divisors is an integer number (71379735).

Almost surely, 2^142759469 is an apocalyptic number.

It is an amenable number.

142759469 is a deficient number, since it is larger than the sum of its proper divisors (1).

142759469 is an equidigital number, since it uses as much as digits as its factorization.

142759469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 142759469 is about 11948.1994040943. The cubic root of 142759469 is about 522.6387919108.

The spelling of 142759469 in words is "one hundred forty-two million, seven hundred fifty-nine thousand, four hundred sixty-nine".