145564646 has 8 divisors (see below), whose sum is σ = 218400624. Its totient is φ = 72764440.

The previous prime is 145564633. The next prime is 145564651. The reversal of 145564646 is 646465541.

145564646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6716 + ... + 18336.

It is an arithmetic number, because the mean of its divisors is an integer number (27300078).

Almost surely, 2^145564646 is an apocalyptic number.

145564646 is a deficient number, since it is larger than the sum of its proper divisors (72835978).

145564646 is a wasteful number, since it uses less digits than its factorization.

145564646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17886.

The product of its digits is 345600, while the sum is 41.

The square root of 145564646 is about 12065.0174471486. The cubic root of 145564646 is about 526.0398390120.

The spelling of 145564646 in words is "one hundred forty-five million, five hundred sixty-four thousand, six hundred forty-six".