145659646 has 16 divisors (see below), whose sum is σ = 238545648. Its totient is φ = 66155200.

The previous prime is 145659559. The next prime is 145659653. The reversal of 145659646 is 646956541.

It is a junction number, because it is equal to n+sod(n) for n = 145659596 and 145659605.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 40356 + ... + 43816.

It is an arithmetic number, because the mean of its divisors is an integer number (14909103).

Almost surely, 2^145659646 is an apocalyptic number.

145659646 is a deficient number, since it is larger than the sum of its proper divisors (92886002).

145659646 is a wasteful number, since it uses less digits than its factorization.

145659646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387.

The product of its digits is 777600, while the sum is 46.

The square root of 145659646 is about 12068.9538071864. The cubic root of 145659646 is about 526.1542507608.

The spelling of 145659646 in words is "one hundred forty-five million, six hundred fifty-nine thousand, six hundred forty-six".