142901399 has 4 divisors (see below), whose sum is σ = 143757264. Its totient is φ = 142045536.

The previous prime is 142901393. The next prime is 142901401. The reversal of 142901399 is 993109241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142901399 - 2⁴ = 142901383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142901393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427682 + ... + 428015.

It is an arithmetic number, because the mean of its divisors is an integer number (35939316).

Almost surely, 2^142901399 is an apocalyptic number.

142901399 is a deficient number, since it is larger than the sum of its proper divisors (855865).

142901399 is an equidigital number, since it uses as much as digits as its factorization.

142901399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855864.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 142901399 is about 11954.1373172638. The cubic root of 142901399 is about 522.8119352533.

The spelling of 142901399 in words is "one hundred forty-two million, nine hundred one thousand, three hundred ninety-nine".