147813668 has 18 divisors (see below), whose sum is σ = 265863906. Its totient is φ = 71906688.

The previous prime is 147813641. The next prime is 147813689. The reversal of 147813668 is 866318741.

147813668 is digitally balanced in base 2, 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 3 ways, for example, as 42094144 + 105719524 = 6488^2 + 10282^2 .

It is a super-2 number, since 2×147813668² = 43697760895228448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8021 + ... + 18972.

It is an arithmetic number, because the mean of its divisors is an integer number (14770217).

Almost surely, 2^147813668 is an apocalyptic number.

It is an amenable number.

147813668 is a deficient number, since it is larger than the sum of its proper divisors (118050238).

147813668 is a wasteful number, since it uses less digits than its factorization.

147813668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27071 (or 27032 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 147813668 is about 12157.8644506344. The cubic root of 147813668 is about 528.7351683194.

The spelling of 147813668 in words is "one hundred forty-seven million, eight hundred thirteen thousand, six hundred sixty-eight".