142608469 has 2 divisors, whose sum is σ = 142608470. Its totient is φ = 142608468.

The previous prime is 142608443. The next prime is 142608523. The reversal of 142608469 is 964806241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141919569 + 688900 = 11913^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 142608469 - 2⁹ = 142607957 is a prime.

It is a super-2 number, since 2×142608469² = 40674350861047922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142608419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71304234 + 71304235.

It is an arithmetic number, because the mean of its divisors is an integer number (71304235).

Almost surely, 2^142608469 is an apocalyptic number.

It is an amenable number.

142608469 is a deficient number, since it is larger than the sum of its proper divisors (1).

142608469 is an equidigital number, since it uses as much as digits as its factorization.

142608469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 142608469 is about 11941.8787885324. The cubic root of 142608469 is about 522.4544578484.

The spelling of 142608469 in words is "one hundred forty-two million, six hundred eight thousand, four hundred sixty-nine".