145843641 has 12 divisors (see below), whose sum is σ = 211594032. Its totient is φ = 96799416.

The previous prime is 145843637. The next prime is 145843669. The reversal of 145843641 is 146348541.

145843641 is a `hidden beast` number, since 1 + 4 + 5 + 8 + 4 + 3 + 641 = 666.

145843641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145843641 - 2² = 145843637 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145843596 and 145843605.

It is not an unprimeable number, because it can be changed into a prime (145843441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33651 + ... + 37736.

It is an arithmetic number, because the mean of its divisors is an integer number (17632836).

Almost surely, 2^145843641 is an apocalyptic number.

It is an amenable number.

145843641 is a deficient number, since it is larger than the sum of its proper divisors (65750391).

145843641 is a wasteful number, since it uses less digits than its factorization.

145843641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71620 (or 71617 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 145843641 is about 12076.5740588960. The cubic root of 145843641 is about 526.3757008324.

It can be divided in two parts, 14584 and 3641, that added together give a square (18225 = 135²).

The spelling of 145843641 in words is "one hundred forty-five million, eight hundred forty-three thousand, six hundred forty-one".