142404299 has 4 divisors (see below), whose sum is σ = 142443336. Its totient is φ = 142365264.

The previous prime is 142404287. The next prime is 142404307. The reversal of 142404299 is 992404241.

It is a happy number.

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 142404299 - 2⁸ = 142404043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142404209) 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, 13409 + ... + 21554.

It is an arithmetic number, because the mean of its divisors is an integer number (35610834).

Almost surely, 2^142404299 is an apocalyptic number.

142404299 is a deficient number, since it is larger than the sum of its proper divisors (39037).

142404299 is an equidigital number, since it uses as much as digits as its factorization.

142404299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39036.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 142404299 is about 11933.3272392908. The cubic root of 142404299 is about 522.2050091924.

The spelling of 142404299 in words is "one hundred forty-two million, four hundred four thousand, two hundred ninety-nine".