147164638 has 4 divisors (see below), whose sum is σ = 220746960. Its totient is φ = 73582318.

The previous prime is 147164609. The next prime is 147164659. The reversal of 147164638 is 836461741.

147164638 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 836461741 = 53 ⋅15782297.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 147164638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36791158 + ... + 36791161.

It is an arithmetic number, because the mean of its divisors is an integer number (55186740).

Almost surely, 2^147164638 is an apocalyptic number.

147164638 is a deficient number, since it is larger than the sum of its proper divisors (73582322).

147164638 is an equidigital number, since it uses as much as digits as its factorization.

147164638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73582321.

The product of its digits is 96768, while the sum is 40.

The square root of 147164638 is about 12131.1433096803. The cubic root of 147164638 is about 527.9601644839.

The spelling of 147164638 in words is "one hundred forty-seven million, one hundred sixty-four thousand, six hundred thirty-eight".