45180901 has 4 divisors (see below), whose sum is σ = 47145312. Its totient is φ = 43216492.

The previous prime is 45180899. The next prime is 45180907. The reversal of 45180901 is 10908154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45180901 - 2¹ = 45180899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45180901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45180907) 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, 982171 + ... + 982216.

It is an arithmetic number, because the mean of its divisors is an integer number (11786328).

Almost surely, 2^45180901 is an apocalyptic number.

It is an amenable number.

45180901 is a deficient number, since it is larger than the sum of its proper divisors (1964411).

45180901 is a wasteful number, since it uses less digits than its factorization.

45180901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964410.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 45180901 is about 6721.6739730517. The cubic root of 45180901 is about 356.1653195263.

The spelling of 45180901 in words is "forty-five million, one hundred eighty thousand, nine hundred one".