45187322 has 4 divisors (see below), whose sum is σ = 67780986. Its totient is φ = 22593660.

The previous prime is 45187313. The next prime is 45187327. The reversal of 45187322 is 22378154.

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., 44209201 + 978121 = 6649^2 + 989^2 .

It is not an unprimeable number, because it can be changed into a prime (45187327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11296829 + ... + 11296832.

Almost surely, 2^45187322 is an apocalyptic number.

45187322 is a deficient number, since it is larger than the sum of its proper divisors (22593664).

45187322 is a wasteful number, since it uses less digits than its factorization.

45187322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22593663.

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

The square root of 45187322 is about 6722.1515900789. The cubic root of 45187322 is about 356.1821911774.

The spelling of 45187322 in words is "forty-five million, one hundred eighty-seven thousand, three hundred twenty-two".