45243245 has 4 divisors (see below), whose sum is σ = 54291900. Its totient is φ = 36194592.

The previous prime is 45243227. The next prime is 45243269. The reversal of 45243245 is 54234254.

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 6666724 + 38576521 = 2582^2 + 6211^2 .

It is a cyclic number.

It is not a de Polignac number, because 45243245 - 2¹² = 45239149 is a prime.

It is a congruent number.

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, 4524320 + ... + 4524329.

It is an arithmetic number, because the mean of its divisors is an integer number (13572975).

Almost surely, 2^45243245 is an apocalyptic number.

It is an amenable number.

45243245 is a deficient number, since it is larger than the sum of its proper divisors (9048655).

45243245 is an equidigital number, since it uses as much as digits as its factorization.

45243245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9048654.

The product of its digits is 19200, while the sum is 29.

The square root of 45243245 is about 6726.3099096013. The cubic root of 45243245 is about 356.3290654510.

Adding to 45243245 its reverse (54234254), we get a palindrome (99477499).

The spelling of 45243245 in words is "forty-five million, two hundred forty-three thousand, two hundred forty-five".