142331899 has 2 divisors, whose sum is σ = 142331900. Its totient is φ = 142331898.

The previous prime is 142331887. The next prime is 142331911. The reversal of 142331899 is 998133241.

It is a balanced prime because it is at equal distance from previous prime (142331887) and next prime (142331911).

It is a cyclic number.

It is not a de Polignac number, because 142331899 - 2⁵ = 142331867 is a prime.

It is not a weakly prime, because it can be changed into another prime (142331879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71165949 + 71165950.

It is an arithmetic number, because the mean of its divisors is an integer number (71165950).

Almost surely, 2^142331899 is an apocalyptic number.

142331899 is a deficient number, since it is larger than the sum of its proper divisors (1).

142331899 is an equidigital number, since it uses as much as digits as its factorization.

142331899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 142331899 is about 11930.2933325212. The cubic root of 142331899 is about 522.1164958258.

The spelling of 142331899 in words is "one hundred forty-two million, three hundred thirty-one thousand, eight hundred ninety-nine".