45943186 has 4 divisors (see below), whose sum is σ = 68914782. Its totient is φ = 22971592.

The previous prime is 45943181. The next prime is 45943189. The reversal of 45943186 is 68134954.

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

It can be written as a sum of positive squares in only one way, i.e., 35581225 + 10361961 = 5965^2 + 3219^2 .

It is a super-2 number, since 2×45943186² = 4221552679661192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (45943181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11485795 + ... + 11485798.

Almost surely, 2^45943186 is an apocalyptic number.

45943186 is a deficient number, since it is larger than the sum of its proper divisors (22971596).

45943186 is a wasteful number, since it uses less digits than its factorization.

45943186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22971595.

The product of its digits is 103680, while the sum is 40.

The square root of 45943186 is about 6778.1403054230. The cubic root of 45943186 is about 358.1572138066.

The spelling of 45943186 in words is "forty-five million, nine hundred forty-three thousand, one hundred eighty-six".