45381503 has 2 divisors, whose sum is σ = 45381504. Its totient is φ = 45381502.

The previous prime is 45381493. The next prime is 45381509. The reversal of 45381503 is 30518354.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45381503 - 2⁴ = 45381487 is a prime.

It is a super-3 number, since 3×45381503³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45381509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22690751 + 22690752.

It is an arithmetic number, because the mean of its divisors is an integer number (22690752).

Almost surely, 2^45381503 is an apocalyptic number.

45381503 is a deficient number, since it is larger than the sum of its proper divisors (1).

45381503 is an equidigital number, since it uses as much as digits as its factorization.

45381503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 45381503 is about 6736.5794732935. The cubic root of 45381503 is about 356.6916628283.

Adding to 45381503 its reverse (30518354), we get a palindrome (75899857).

The spelling of 45381503 in words is "forty-five million, three hundred eighty-one thousand, five hundred three".