146227201 has 4 divisors (see below), whose sum is σ = 146336004. Its totient is φ = 146118400.

The previous prime is 146227189. The next prime is 146227223. The reversal of 146227201 is 102722641.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72250000 + 73977201 = 8500^2 + 8601^2 .

It is a cyclic number.

It is not a de Polignac number, because 146227201 - 2¹³ = 146219009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146224201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52360 + ... + 55081.

It is an arithmetic number, because the mean of its divisors is an integer number (36584001).

It is a Proth number, since it is equal to 8925 ⋅ 2¹⁴ + 1 and 8925 < 2¹⁴.

Almost surely, 2^146227201 is an apocalyptic number.

It is an amenable number.

146227201 is a deficient number, since it is larger than the sum of its proper divisors (108803).

146227201 is a wasteful number, since it uses less digits than its factorization.

146227201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108802.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 146227201 is about 12092.4439630705. The cubic root of 146227201 is about 526.8367423710.

Adding to 146227201 its reverse (102722641), we get a palindrome (248949842).

The spelling of 146227201 in words is "one hundred forty-six million, two hundred twenty-seven thousand, two hundred one".