45103649 has 4 divisors (see below), whose sum is σ = 46203780. Its totient is φ = 44003520.

The previous prime is 45103631. The next prime is 45103651. The reversal of 45103649 is 94630154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5953600 + 39150049 = 2440^2 + 6257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45103649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45103609) 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, 550004 + ... + 550085.

It is an arithmetic number, because the mean of its divisors is an integer number (11550945).

Almost surely, 2^45103649 is an apocalyptic number.

It is an amenable number.

45103649 is a deficient number, since it is larger than the sum of its proper divisors (1100131).

45103649 is a wasteful number, since it uses less digits than its factorization.

45103649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100130.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 45103649 is about 6715.9250293612. The cubic root of 45103649 is about 355.9622087772.

The spelling of 45103649 in words is "forty-five million, one hundred three thousand, six hundred forty-nine".