142030905 has 8 divisors (see below), whose sum is σ = 227249472. Its totient is φ = 75749808.

The previous prime is 142030891. The next prime is 142030907. The reversal of 142030905 is 509030241.

142030905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 142030905 - 2⁸ = 142030649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142030907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4734349 + ... + 4734378.

It is an arithmetic number, because the mean of its divisors is an integer number (28406184).

Almost surely, 2^142030905 is an apocalyptic number.

142030905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142030905 is a deficient number, since it is larger than the sum of its proper divisors (85218567).

142030905 is an equidigital number, since it uses as much as digits as its factorization.

142030905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468735.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 142030905 is about 11917.6719622584. The cubic root of 142030905 is about 521.7481903756.

The spelling of 142030905 in words is "one hundred forty-two million, thirty thousand, nine hundred five".