146167221 has 16 divisors (see below), whose sum is σ = 203212800. Its totient is φ = 93336768.

The previous prime is 146167213. The next prime is 146167237. The reversal of 146167221 is 122761641.

It is not a de Polignac number, because 146167221 - 2³ = 146167213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146167211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4435 + ... + 17663.

It is an arithmetic number, because the mean of its divisors is an integer number (12700800).

Almost surely, 2^146167221 is an apocalyptic number.

It is an amenable number.

146167221 is a deficient number, since it is larger than the sum of its proper divisors (57045579).

146167221 is a wasteful number, since it uses less digits than its factorization.

146167221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13388.

The product of its digits is 4032, while the sum is 30.

The square root of 146167221 is about 12089.9636475880. The cubic root of 146167221 is about 526.7646992556.

The spelling of 146167221 in words is "one hundred forty-six million, one hundred sixty-seven thousand, two hundred twenty-one".