147749622 has 8 divisors (see below), whose sum is σ = 295499256. Its totient is φ = 49249872.

The previous prime is 147749617. The next prime is 147749639. The reversal of 147749622 is 226947741.

It is a sphenic number, since it is the product of 3 distinct primes.

147749622 is an admirable number.

It is a super-2 number, since 2×147749622² = 43659901602285768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12312463 + ... + 12312474.

It is an arithmetic number, because the mean of its divisors is an integer number (36937407).

Almost surely, 2^147749622 is an apocalyptic number.

147749622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147749622 is a wasteful number, since it uses less digits than its factorization.

147749622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24624942.

The product of its digits is 169344, while the sum is 42.

The square root of 147749622 is about 12155.2302322910. The cubic root of 147749622 is about 528.6587922867.

The spelling of 147749622 in words is "one hundred forty-seven million, seven hundred forty-nine thousand, six hundred twenty-two".