45213623 has 12 divisors (see below), whose sum is σ = 56642040. Its totient is φ = 35772912.

The previous prime is 45213613. The next prime is 45213629. The reversal of 45213623 is 32631254.

It is not a de Polignac number, because 45213623 - 2⁸ = 45213367 is a prime.

It is a super-2 number, since 2×45213623² = 4088543409572258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45213592 and 45213601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45213629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34853 + ... + 36126.

It is an arithmetic number, because the mean of its divisors is an integer number (4720170).

Almost surely, 2^45213623 is an apocalyptic number.

45213623 is a deficient number, since it is larger than the sum of its proper divisors (11428417).

45213623 is a wasteful number, since it uses less digits than its factorization.

45213623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71006 (or 70999 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 45213623 is about 6724.1075987822. The cubic root of 45213623 is about 356.2512823182.

Adding to 45213623 its reverse (32631254), we get a palindrome (77844877).

The spelling of 45213623 in words is "forty-five million, two hundred thirteen thousand, six hundred twenty-three".