45009101 has 4 divisors (see below), whose sum is σ = 45643104. Its totient is φ = 44375100.

The previous prime is 45009079. The next prime is 45009109. The reversal of 45009101 is 10190054.

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 a de Polignac number, because none of the positive numbers 2^k-45009101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45009109) 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, 316895 + ... + 317036.

It is an arithmetic number, because the mean of its divisors is an integer number (11410776).

Almost surely, 2^45009101 is an apocalyptic number.

It is an amenable number.

45009101 is a deficient number, since it is larger than the sum of its proper divisors (634003).

45009101 is an equidigital number, since it uses as much as digits as its factorization.

45009101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634002.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 45009101 is about 6708.8822466936. The cubic root of 45009101 is about 355.7133075630.

Adding to 45009101 its reverse (10190054), we get a palindrome (55199155).

The spelling of 45009101 in words is "forty-five million, nine thousand, one hundred one".