45721201 has 4 divisors (see below), whose sum is σ = 48127600. Its totient is φ = 43314804.

The previous prime is 45721199. The next prime is 45721213. The reversal of 45721201 is 10212754.

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 45721201 - 2¹ = 45721199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45721261) 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, 1203171 + ... + 1203208.

It is an arithmetic number, because the mean of its divisors is an integer number (12031900).

Almost surely, 2^45721201 is an apocalyptic number.

It is an amenable number.

45721201 is a deficient number, since it is larger than the sum of its proper divisors (2406399).

45721201 is a wasteful number, since it uses less digits than its factorization.

45721201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406398.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 45721201 is about 6761.7454107649. The cubic root of 45721201 is about 357.5794427914.

Adding to 45721201 its reverse (10212754), we get a palindrome (55933955).

The spelling of 45721201 in words is "forty-five million, seven hundred twenty-one thousand, two hundred one".