45658 has 8 divisors (see below), whose sum is σ = 70452. Its totient is φ = 22176.

The previous prime is 45641. The next prime is 45659. The reversal of 45658 is 85654.

45658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45369 + 289 = 213^2 + 17^2 .

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

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (45659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235 + ... + 382.

2⁴⁵⁶⁵⁸ is an apocalyptic number.

45658 is a deficient number, since it is larger than the sum of its proper divisors (24794).

45658 is a wasteful number, since it uses less digits than its factorization.

45658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656.

The product of its digits is 4800, while the sum is 28.

The square root of 45658 is about 213.6773268272. The cubic root of 45658 is about 35.7414604605.

It can be divided in two parts, 45 and 658, that added together give a triangular number (703 = T₃₇).

The spelling of 45658 in words is "forty-five thousand, six hundred fifty-eight".