45387169 has 3 divisors (see below), whose sum is σ = 45393907. Its totient is φ = 45380432.

The previous prime is 45387151. The next prime is 45387179. The reversal of 45387169 is 96178354.

The square root of 45387169 is 6737.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96178354 = 2 ⋅48089177.

It can be written as a sum of positive squares in only one way, i.e., 23184225 + 22202944 = 4815^2 + 4712^2 .

It is not a de Polignac number, because 45387169 - 2⁹ = 45386657 is a prime.

It is a super-2 number, since 2×45387169² = 4119990219669122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45387179) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3369 + ... + 10105.

Almost surely, 2^45387169 is an apocalyptic number.

45387169 is the 6737-th square number.

45387169 is the 3369-th centered octagonal number.

It is an amenable number.

45387169 is a deficient number, since it is larger than the sum of its proper divisors (6738).

45387169 is an frugal number, since it uses more digits than its factorization.

45387169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13474 (or 6737 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The cubic root of 45387169 is about 356.7065068413.

The spelling of 45387169 in words is "forty-five million, three hundred eighty-seven thousand, one hundred sixty-nine".