147891622 has 4 divisors (see below), whose sum is σ = 221837436. Its totient is φ = 73945810.

The previous prime is 147891617. The next prime is 147891647. The reversal of 147891622 is 226198741.

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

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36972904 + ... + 36972907.

It is an arithmetic number, because the mean of its divisors is an integer number (55459359).

Almost surely, 2^147891622 is an apocalyptic number.

147891622 is a deficient number, since it is larger than the sum of its proper divisors (73945814).

147891622 is an equidigital number, since it uses as much as digits as its factorization.

147891622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73945813.

The product of its digits is 48384, while the sum is 40.

The square root of 147891622 is about 12161.0699364817. The cubic root of 147891622 is about 528.8281001353.

The spelling of 147891622 in words is "one hundred forty-seven million, eight hundred ninety-one thousand, six hundred twenty-two".