45503431 has 2 divisors, whose sum is σ = 45503432. Its totient is φ = 45503430.

The previous prime is 45503413. The next prime is 45503459. The reversal of 45503431 is 13430554.

Together with previous prime (45503413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45503431 - 2¹³ = 45495239 is a prime.

It is a super-2 number, since 2×45503431² = 4141124465543522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45503396 and 45503405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45503231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22751715 + 22751716.

It is an arithmetic number, because the mean of its divisors is an integer number (22751716).

Almost surely, 2^45503431 is an apocalyptic number.

45503431 is a deficient number, since it is larger than the sum of its proper divisors (1).

45503431 is an equidigital number, since it uses as much as digits as its factorization.

45503431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 45503431 is about 6745.6230994623. The cubic root of 45503431 is about 357.0108223016.

Adding to 45503431 its reverse (13430554), we get a palindrome (58933985).

The spelling of 45503431 in words is "forty-five million, five hundred three thousand, four hundred thirty-one".