142892549909 has 2 divisors, whose sum is σ = 142892549910. Its totient is φ = 142892549908.

The previous prime is 142892549897. The next prime is 142892549911. The reversal of 142892549909 is 909945298241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84970501009 + 57922048900 = 291497^2 + 240670^2 .

It is a cyclic number.

It is not a de Polignac number, because 142892549909 - 2³⁶ = 74173073173 is a prime.

It is a Sophie Germain prime.

Together with 142892549911, it forms a pair of twin primes.

It is a Chen 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 (142892549999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71446274954 + 71446274955.

It is an arithmetic number, because the mean of its divisors is an integer number (71446274955).

Almost surely, 2^142892549909 is an apocalyptic number.

It is an amenable number.

142892549909 is a deficient number, since it is larger than the sum of its proper divisors (1).

142892549909 is an equidigital number, since it uses as much as digits as its factorization.

142892549909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 142892549909 in words is "one hundred forty-two billion, eight hundred ninety-two million, five hundred forty-nine thousand, nine hundred nine".