45097945 has 4 divisors (see below), whose sum is σ = 54117540. Its totient is φ = 36078352.

The previous prime is 45097933. The next prime is 45097951. The reversal of 45097945 is 54979054.

It is a happy number.

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 24631369 + 20466576 = 4963^2 + 4524^2 .

It is a cyclic number.

It is not a de Polignac number, because 45097945 - 2⁷ = 45097817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4509790 + ... + 4509799.

It is an arithmetic number, because the mean of its divisors is an integer number (13529385).

Almost surely, 2^45097945 is an apocalyptic number.

It is an amenable number.

45097945 is a deficient number, since it is larger than the sum of its proper divisors (9019595).

45097945 is an equidigital number, since it uses as much as digits as its factorization.

45097945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9019594.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 45097945 is about 6715.5003536594. The cubic root of 45097945 is about 355.9472026444.

It can be divided in two parts, 4509794 and 5, that multiplied together give a triangular number (22548970 = T₆₇₁₅).

The spelling of 45097945 in words is "forty-five million, ninety-seven thousand, nine hundred forty-five".