45036623 has 4 divisors (see below), whose sum is σ = 46589640. Its totient is φ = 43483608.

The previous prime is 45036617. The next prime is 45036637. The reversal of 45036623 is 32663054.

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

It is a cyclic number.

It is not a de Polignac number, because 45036623 - 2⁶ = 45036559 is a prime.

It is a super-3 number, since 3×45036623³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 1552987 = 45036623 / (4 + 5 + 0 + 3 + 6 + 6 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45036653) 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, 776465 + ... + 776522.

It is an arithmetic number, because the mean of its divisors is an integer number (11647410).

Almost surely, 2^45036623 is an apocalyptic number.

45036623 is a deficient number, since it is larger than the sum of its proper divisors (1553017).

45036623 is a wasteful number, since it uses less digits than its factorization.

45036623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553016.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 45036623 is about 6710.9330945853. The cubic root of 45036623 is about 355.7857962129.

Adding to 45036623 its reverse (32663054), we get a palindrome (77699677).

It can be divided in two parts, 450 and 36623, that added together give a palindrome (37073).

The spelling of 45036623 in words is "forty-five million, thirty-six thousand, six hundred twenty-three".