146205730 has 16 divisors (see below), whose sum is σ = 287095104. Its totient is φ = 53165680.

The previous prime is 146205727. The next prime is 146205757. The reversal of 146205730 is 37502641.

It is a super-2 number, since 2×146205730² = 42752230969665800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664462 + ... + 664681.

It is an arithmetic number, because the mean of its divisors is an integer number (17943444).

Almost surely, 2^146205730 is an apocalyptic number.

146205730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146205730 is a deficient number, since it is larger than the sum of its proper divisors (140889374).

146205730 is a wasteful number, since it uses less digits than its factorization.

146205730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329161.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 146205730 is about 12091.5561446821. The cubic root of 146205730 is about 526.8109554100.

The spelling of 146205730 in words is "one hundred forty-six million, two hundred five thousand, seven hundred thirty".