147755705 has 4 divisors (see below), whose sum is σ = 177306852. Its totient is φ = 118204560.

The previous prime is 147755669. The next prime is 147755711. The reversal of 147755705 is 507557741.

It is a happy number.

147755705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82210489 + 65545216 = 9067^2 + 8096^2 .

It is not a de Polignac number, because 147755705 - 2²⁰ = 146707129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14775566 + ... + 14775575.

It is an arithmetic number, because the mean of its divisors is an integer number (44326713).

Almost surely, 2^147755705 is an apocalyptic number.

It is an amenable number.

147755705 is a deficient number, since it is larger than the sum of its proper divisors (29551147).

147755705 is an equidigital number, since it uses as much as digits as its factorization.

147755705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29551146.

The product of its (nonzero) digits is 171500, while the sum is 41.

The square root of 147755705 is about 12155.4804512203. The cubic root of 147755705 is about 528.6660473245. Note that the first 3 decimals are identical.

The spelling of 147755705 in words is "one hundred forty-seven million, seven hundred fifty-five thousand, seven hundred five".