45100001 has 4 divisors (see below), whose sum is σ = 45122352. Its totient is φ = 45077652.

The previous prime is 45099973. The next prime is 45100007. The reversal of 45100001 is 10000154.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10000154 = 2 ⋅5000077.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45100007) 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, 7811 + ... + 12296.

It is an arithmetic number, because the mean of its divisors is an integer number (11280588).

Almost surely, 2^45100001 is an apocalyptic number.

It is an amenable number.

45100001 is a deficient number, since it is larger than the sum of its proper divisors (22351).

45100001 is a wasteful number, since it uses less digits than its factorization.

45100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22350.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 45100001 is about 6715.6534306052. The cubic root of 45100001 is about 355.9526117329.

Adding to 45100001 its reverse (10000154), we get a palindrome (55100155).

The spelling of 45100001 in words is "forty-five million, one hundred thousand, one".