142166099 has 4 divisors (see below), whose sum is σ = 146008464. Its totient is φ = 138323736.

The previous prime is 142166081. The next prime is 142166107. The reversal of 142166099 is 990661241.

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 142166099 - 2¹² = 142162003 is a prime.

It is a super-2 number, since 2×142166099² = 40422399409755602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142166029) 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, 1921127 + ... + 1921200.

It is an arithmetic number, because the mean of its divisors is an integer number (36502116).

Almost surely, 2^142166099 is an apocalyptic number.

142166099 is a deficient number, since it is larger than the sum of its proper divisors (3842365).

142166099 is an equidigital number, since it uses as much as digits as its factorization.

142166099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842364.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 142166099 is about 11923.3426101912. The cubic root of 142166099 is about 521.9136821890.

The spelling of 142166099 in words is "one hundred forty-two million, one hundred sixty-six thousand, ninety-nine".