45324251 has 4 divisors (see below), whose sum is σ = 51799152. Its totient is φ = 38849352.

The previous prime is 45324241. The next prime is 45324259. The reversal of 45324251 is 15242354.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15242354 = 2 ⋅7621177.

It is a cyclic number.

It is not a de Polignac number, because 45324251 - 2¹⁸ = 45062107 is a prime.

It is a super-2 number, since 2×45324251² = 4108575457422002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45324251.

It is not an unprimeable number, because it can be changed into a prime (45324259) 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 3 ways as a sum of consecutive naturals, for example, 3237440 + ... + 3237453.

It is an arithmetic number, because the mean of its divisors is an integer number (12949788).

Almost surely, 2^45324251 is an apocalyptic number.

45324251 is a deficient number, since it is larger than the sum of its proper divisors (6474901).

45324251 is an equidigital number, since it uses as much as digits as its factorization.

45324251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6474900.

The product of its digits is 4800, while the sum is 26.

The square root of 45324251 is about 6732.3287947040. The cubic root of 45324251 is about 356.5416023896.

The spelling of 45324251 in words is "forty-five million, three hundred twenty-four thousand, two hundred fifty-one".