142105154 has 8 divisors (see below), whose sum is σ = 213210300. Its totient is φ = 71035056.

The previous prime is 142105129. The next prime is 142105157. The reversal of 142105154 is 451501241.

142105154 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 141253225 + 851929 = 11885^2 + 923^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (142105157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7172 + ... + 18320.

Almost surely, 2^142105154 is an apocalyptic number.

142105154 is a deficient number, since it is larger than the sum of its proper divisors (71105146).

142105154 is a wasteful number, since it uses less digits than its factorization.

142105154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17524.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 142105154 is about 11920.7866351177. The cubic root of 142105154 is about 521.8390920302.

Adding to 142105154 its reverse (451501241), we get a palindrome (593606395).

The spelling of 142105154 in words is "one hundred forty-two million, one hundred five thousand, one hundred fifty-four".