146805290 has 16 divisors (see below), whose sum is σ = 265017312. Its totient is φ = 58551504.

The previous prime is 146805289. The next prime is 146805293. The reversal of 146805290 is 92508641.

It is a self number, because there is not a number n which added to its sum of digits gives 146805290.

It is not an unprimeable number, because it can be changed into a prime (146805293) 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, 17684 + ... + 24623.

It is an arithmetic number, because the mean of its divisors is an integer number (16563582).

Almost surely, 2^146805290 is an apocalyptic number.

146805290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146805290 is a deficient number, since it is larger than the sum of its proper divisors (118212022).

146805290 is a wasteful number, since it uses less digits than its factorization.

146805290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42661.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 146805290 is about 12116.3232872023. The cubic root of 146805290 is about 527.5300882039.

The spelling of 146805290 in words is "one hundred forty-six million, eight hundred five thousand, two hundred ninety".