147213686 has 12 divisors (see below), whose sum is σ = 228700212. Its totient is φ = 71067864.

The previous prime is 147213683. The next prime is 147213721. The reversal of 147213686 is 686312741.

147213686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147213683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42080 + ... + 45443.

It is an arithmetic number, because the mean of its divisors is an integer number (19058351).

Almost surely, 2^147213686 is an apocalyptic number.

147213686 is a deficient number, since it is larger than the sum of its proper divisors (81486526).

147213686 is an equidigital number, since it uses as much as digits as its factorization.

147213686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87583 (or 87554 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 147213686 is about 12133.1647149456. The cubic root of 147213686 is about 528.0188119828.

The spelling of 147213686 in words is "one hundred forty-seven million, two hundred thirteen thousand, six hundred eighty-six".