142107499 has 4 divisors (see below), whose sum is σ = 142339936. Its totient is φ = 141875064.

The previous prime is 142107487. The next prime is 142107521. The reversal of 142107499 is 994701241.

142107499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142107499 - 2¹¹ = 142105451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142107799) 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, 115299 + ... + 116524.

It is an arithmetic number, because the mean of its divisors is an integer number (35584984).

Almost surely, 2^142107499 is an apocalyptic number.

142107499 is a deficient number, since it is larger than the sum of its proper divisors (232437).

142107499 is an equidigital number, since it uses as much as digits as its factorization.

142107499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232436.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 142107499 is about 11920.8849923150. The cubic root of 142107499 is about 521.8419624537.

The spelling of 142107499 in words is "one hundred forty-two million, one hundred seven thousand, four hundred ninety-nine".