45320623 has 8 divisors (see below), whose sum is σ = 48072960. Its totient is φ = 42577920.

The previous prime is 45320563. The next prime is 45320633. The reversal of 45320623 is 32602354.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45320623 - 2¹³ = 45312431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45320633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8818 + ... + 12976.

It is an arithmetic number, because the mean of its divisors is an integer number (6009120).

Almost surely, 2^45320623 is an apocalyptic number.

45320623 is a deficient number, since it is larger than the sum of its proper divisors (2752337).

45320623 is a wasteful number, since it uses less digits than its factorization.

45320623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 45320623 is about 6732.0593431728. The cubic root of 45320623 is about 356.5320889582.

Adding to 45320623 its reverse (32602354), we get a palindrome (77922977).

The spelling of 45320623 in words is "forty-five million, three hundred twenty thousand, six hundred twenty-three".