147106221 has 8 divisors (see below), whose sum is σ = 196356480. Its totient is φ = 97963392.

The previous prime is 147106213. The next prime is 147106243. The reversal of 147106221 is 122601741.

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

It is not a de Polignac number, because 147106221 - 2³ = 147106213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 147106191 and 147106200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147106261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23605 + ... + 29178.

It is an arithmetic number, because the mean of its divisors is an integer number (24544560).

Almost surely, 2^147106221 is an apocalyptic number.

It is an amenable number.

147106221 is a deficient number, since it is larger than the sum of its proper divisors (49250259).

147106221 is an equidigital number, since it uses as much as digits as its factorization.

147106221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53715.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 147106221 is about 12128.7353421534. The cubic root of 147106221 is about 527.8902973131.

Adding to 147106221 its reverse (122601741), we get a palindrome (269707962).

The spelling of 147106221 in words is "one hundred forty-seven million, one hundred six thousand, two hundred twenty-one".