45242345 has 4 divisors (see below), whose sum is σ = 54290820. Its totient is φ = 36193872.

The previous prime is 45242333. The next prime is 45242347. The reversal of 45242345 is 54324254.

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 27290176 + 17952169 = 5224^2 + 4237^2 .

It is a cyclic number.

It is not a de Polignac number, because 45242345 - 2⁸ = 45242089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45242347) 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, 4524230 + ... + 4524239.

It is an arithmetic number, because the mean of its divisors is an integer number (13572705).

Almost surely, 2^45242345 is an apocalyptic number.

It is an amenable number.

45242345 is a deficient number, since it is larger than the sum of its proper divisors (9048475).

45242345 is an equidigital number, since it uses as much as digits as its factorization.

45242345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9048474.

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

The square root of 45242345 is about 6726.2430078016. The cubic root of 45242345 is about 356.3267026799.

Adding to 45242345 its reverse (54324254), we get a palindrome (99566599).

The spelling of 45242345 in words is "forty-five million, two hundred forty-two thousand, three hundred forty-five".