142775755 has 8 divisors (see below), whose sum is σ = 173097792. Its totient is φ = 113042688.

The previous prime is 142775753. The next prime is 142775767. The reversal of 142775755 is 557577241.

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

It is a cyclic number.

It is not a de Polignac number, because 142775755 - 2¹ = 142775753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142775753) 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, 146707 + ... + 147676.

It is an arithmetic number, because the mean of its divisors is an integer number (21637224).

Almost surely, 2^142775755 is an apocalyptic number.

142775755 is a deficient number, since it is larger than the sum of its proper divisors (30322037).

142775755 is an equidigital number, since it uses as much as digits as its factorization.

142775755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294485.

The product of its digits is 343000, while the sum is 43.

The square root of 142775755 is about 11948.8809099430. The cubic root of 142775755 is about 522.6586653659.

The spelling of 142775755 in words is "one hundred forty-two million, seven hundred seventy-five thousand, seven hundred fifty-five".