146856645 has 40 divisors (see below), whose sum is σ = 283514616. Its totient is φ = 72296064.

The previous prime is 146856637. The next prime is 146856649. The reversal of 146856645 is 546658641.

146856645 is a `hidden beast` number, since 1 + 46 + 8 + 566 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 34644996 + 112211649 = 5886^2 + 10593^2 .

It is not a de Polignac number, because 146856645 - 2³ = 146856637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 146856645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146856649) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8682 + ... + 19211.

Almost surely, 2^146856645 is an apocalyptic number.

146856645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146856645 is a deficient number, since it is larger than the sum of its proper divisors (136657971).

146856645 is a wasteful number, since it uses less digits than its factorization.

146856645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27923 (or 27914 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 146856645 is about 12118.4423504013. The cubic root of 146856645 is about 527.5915940467.

The spelling of 146856645 in words is "one hundred forty-six million, eight hundred fifty-six thousand, six hundred forty-five".