45252431 has 12 divisors (see below), whose sum is σ = 54930672. Its totient is φ = 37100448.

The previous prime is 45252413. The next prime is 45252439. The reversal of 45252431 is 13425254.

It is a happy number.

It is not a de Polignac number, because 45252431 - 2¹⁸ = 44990287 is a prime.

It is a super-2 number, since 2×45252431² = 4095565022819522, 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 45252431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45252439) 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, 18950 + ... + 21203.

It is an arithmetic number, because the mean of its divisors is an integer number (4577556).

Almost surely, 2^45252431 is an apocalyptic number.

45252431 is a deficient number, since it is larger than the sum of its proper divisors (9678241).

45252431 is a wasteful number, since it uses less digits than its factorization.

45252431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40190 (or 40183 counting only the distinct ones).

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

The square root of 45252431 is about 6726.9927159170. The cubic root of 45252431 is about 356.3531796754.

Adding to 45252431 its reverse (13425254), we get a palindrome (58677685).

The spelling of 45252431 in words is "forty-five million, two hundred fifty-two thousand, four hundred thirty-one".