45775181 has 4 divisors (see below), whose sum is σ = 45938364. Its totient is φ = 45612000.

The previous prime is 45775153. The next prime is 45775183. The reversal of 45775181 is 18157754.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21114025 + 24661156 = 4595^2 + 4966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45775181 is a prime.

It is a super-2 number, since 2×45775181² = 4190734391165522, 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 (45775183) 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, 81170 + ... + 81731.

It is an arithmetic number, because the mean of its divisors is an integer number (11484591).

Almost surely, 2^45775181 is an apocalyptic number.

It is an amenable number.

45775181 is a deficient number, since it is larger than the sum of its proper divisors (163183).

45775181 is a wasteful number, since it uses less digits than its factorization.

45775181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163182.

The product of its digits is 39200, while the sum is 38.

The square root of 45775181 is about 6765.7358062520. The cubic root of 45775181 is about 357.7201109178.

The spelling of 45775181 in words is "forty-five million, seven hundred seventy-five thousand, one hundred eighty-one".