146689616 has 20 divisors (see below), whose sum is σ = 284511924. Its totient is φ = 73267200.

The previous prime is 146689597. The next prime is 146689639. The reversal of 146689616 is 616986641.

It can be written as a sum of positive squares in 2 ways, for example, as 41011216 + 105678400 = 6404^2 + 10280^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 12656 + ... + 21296.

Almost surely, 2^146689616 is an apocalyptic number.

146689616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

146689616 is a deficient number, since it is larger than the sum of its proper divisors (137822308).

146689616 is a wasteful number, since it uses less digits than its factorization.

146689616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9710 (or 9704 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 146689616 is about 12111.5488687451. The cubic root of 146689616 is about 527.3914974906.

The spelling of 146689616 in words is "one hundred forty-six million, six hundred eighty-nine thousand, six hundred sixteen".