146107221 has 8 divisors (see below), whose sum is σ = 209795040. Its totient is φ = 89912112.

The previous prime is 146107219. The next prime is 146107229. The reversal of 146107221 is 122701641.

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

It is not a de Polignac number, because 146107221 - 2¹ = 146107219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 146107191 and 146107200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146107229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1873131 + ... + 1873208.

It is an arithmetic number, because the mean of its divisors is an integer number (26224380).

Almost surely, 2^146107221 is an apocalyptic number.

It is an amenable number.

146107221 is a deficient number, since it is larger than the sum of its proper divisors (63687819).

146107221 is a wasteful number, since it uses less digits than its factorization.

146107221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746355.

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

The square root of 146107221 is about 12087.4819958501. The cubic root of 146107221 is about 526.6926123966.

Adding to 146107221 its reverse (122701641), we get a palindrome (268808862).

The spelling of 146107221 in words is "one hundred forty-six million, one hundred seven thousand, two hundred twenty-one".