142105775 has 12 divisors (see below), whose sum is σ = 201384432. Its totient is φ = 97443840.

The previous prime is 142105763. The next prime is 142105781. The reversal of 142105775 is 577501241.

It is not a de Polignac number, because 142105775 - 2⁴ = 142105759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405842 + ... + 406191.

It is an arithmetic number, because the mean of its divisors is an integer number (16782036).

Almost surely, 2^142105775 is an apocalyptic number.

142105775 is a deficient number, since it is larger than the sum of its proper divisors (59278657).

142105775 is an equidigital number, since it uses as much as digits as its factorization.

142105775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812050 (or 812045 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 142105775 is about 11920.8126820280. The cubic root of 142105775 is about 521.8398521753.

The spelling of 142105775 in words is "one hundred forty-two million, one hundred five thousand, seven hundred seventy-five".