146221130 has 16 divisors (see below), whose sum is σ = 287125344. Its totient is φ = 53171280.

The previous prime is 146221121. The next prime is 146221133. The reversal of 146221130 is 31122641.

It is not an unprimeable number, because it can be changed into a prime (146221133) 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, 664532 + ... + 664751.

It is an arithmetic number, because the mean of its divisors is an integer number (17945334).

Almost surely, 2^146221130 is an apocalyptic number.

146221130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146221130 is a deficient number, since it is larger than the sum of its proper divisors (140904214).

146221130 is a wasteful number, since it uses less digits than its factorization.

146221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329301.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 146221130 is about 12092.1929359401. The cubic root of 146221130 is about 526.8294512740.

Adding to 146221130 its reverse (31122641), we get a palindrome (177343771).

The spelling of 146221130 in words is "one hundred forty-six million, two hundred twenty-one thousand, one hundred thirty".