146820146 has 16 divisors (see below), whose sum is σ = 245839968. Its totient is φ = 65184000.

The previous prime is 146820137. The next prime is 146820197. The reversal of 146820146 is 641028641.

It is a super-2 number, since 2×146820146² = 43112310542922632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76655 + ... + 78546.

It is an arithmetic number, because the mean of its divisors is an integer number (15364998).

Almost surely, 2^146820146 is an apocalyptic number.

146820146 is a deficient number, since it is larger than the sum of its proper divisors (99019822).

146820146 is a wasteful number, since it uses less digits than its factorization.

146820146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155257.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 146820146 is about 12116.9363289571. The cubic root of 146820146 is about 527.5478821191.

Adding to 146820146 its reverse (641028641), we get a palindrome (787848787).

The spelling of 146820146 in words is "one hundred forty-six million, eight hundred twenty thousand, one hundred forty-six".