146643915 has 16 divisors (see below), whose sum is σ = 255960576. Its totient is φ = 71100000.

The previous prime is 146643907. The next prime is 146643941. The reversal of 146643915 is 519346641.

It is not a de Polignac number, because 146643915 - 2³ = 146643907 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444211 + ... + 444540.

It is an arithmetic number, because the mean of its divisors is an integer number (15997536).

Almost surely, 2^146643915 is an apocalyptic number.

146643915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

146643915 is a deficient number, since it is larger than the sum of its proper divisors (109316661).

146643915 is a wasteful number, since it uses less digits than its factorization.

146643915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888770.

The product of its digits is 77760, while the sum is 39.

The square root of 146643915 is about 12109.6620514364. The cubic root of 146643915 is about 527.3367223744.

The spelling of 146643915 in words is "one hundred forty-six million, six hundred forty-three thousand, nine hundred fifteen".