45921801 has 4 divisors (see below), whose sum is σ = 61229072. Its totient is φ = 30614532.

The previous prime is 45921793. The next prime is 45921817. The reversal of 45921801 is 10812954.

It is a happy number.

45921801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 45921801 - 2³ = 45921793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45921871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7653631 + ... + 7653636.

It is an arithmetic number, because the mean of its divisors is an integer number (15307268).

Almost surely, 2^45921801 is an apocalyptic number.

It is an amenable number.

45921801 is a deficient number, since it is larger than the sum of its proper divisors (15307271).

45921801 is a wasteful number, since it uses less digits than its factorization.

45921801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15307270.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 45921801 is about 6776.5626242218. The cubic root of 45921801 is about 358.1016351572.

The spelling of 45921801 in words is "forty-five million, nine hundred twenty-one thousand, eight hundred one".