142055399 has 2 divisors, whose sum is σ = 142055400. Its totient is φ = 142055398.

The previous prime is 142055357. The next prime is 142055401. The reversal of 142055399 is 993550241.

It is a strong prime.

It is an emirp because it is prime and its reverse (993550241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142055399 - 2⁸ = 142055143 is a prime.

Together with 142055401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142055699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71027699 + 71027700.

It is an arithmetic number, because the mean of its divisors is an integer number (71027700).

Almost surely, 2^142055399 is an apocalyptic number.

142055399 is a deficient number, since it is larger than the sum of its proper divisors (1).

142055399 is an equidigital number, since it uses as much as digits as its factorization.

142055399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 142055399 is about 11918.6995515450. The cubic root of 142055399 is about 521.7781814201.

The spelling of 142055399 in words is "one hundred forty-two million, fifty-five thousand, three hundred ninety-nine".