45782231 has 4 divisors (see below), whose sum is σ = 49944264. Its totient is φ = 41620200.

The previous prime is 45782227. The next prime is 45782263. The reversal of 45782231 is 13228754.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45782231 - 2² = 45782227 is a prime.

It is a super-2 number, since 2×45782231² = 4192025350674722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45782131) 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, 2081000 + ... + 2081021.

It is an arithmetic number, because the mean of its divisors is an integer number (12486066).

Almost surely, 2^45782231 is an apocalyptic number.

45782231 is a deficient number, since it is larger than the sum of its proper divisors (4162033).

45782231 is a wasteful number, since it uses less digits than its factorization.

45782231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162032.

The product of its digits is 13440, while the sum is 32.

The square root of 45782231 is about 6766.2567938263. The cubic root of 45782231 is about 357.7384745614.

The spelling of 45782231 in words is "forty-five million, seven hundred eighty-two thousand, two hundred thirty-one".