45612101 has 4 divisors (see below), whose sum is σ = 45641100. Its totient is φ = 45583104.

The previous prime is 45612023. The next prime is 45612107. The reversal of 45612101 is 10121654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10121654 = 2 ⋅5060827.

It can be written as a sum of positive squares in 2 ways, for example, as 23049601 + 22562500 = 4801^2 + 4750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45612101 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45612107) 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, 11996 + ... + 15333.

It is an arithmetic number, because the mean of its divisors is an integer number (11410275).

Almost surely, 2^45612101 is an apocalyptic number.

It is an amenable number.

45612101 is a deficient number, since it is larger than the sum of its proper divisors (28999).

45612101 is a wasteful number, since it uses less digits than its factorization.

45612101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28998.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 45612101 is about 6753.6731487391. The cubic root of 45612101 is about 357.2947973924.

Adding to 45612101 its reverse (10121654), we get a palindrome (55733755).

The spelling of 45612101 in words is "forty-five million, six hundred twelve thousand, one hundred one".