45140503 has 4 divisors (see below), whose sum is σ = 45164448. Its totient is φ = 45116560.

The previous prime is 45140489. The next prime is 45140507. The reversal of 45140503 is 30504154.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45140503 is a prime.

It is a super-2 number, since 2×45140503² = 4075330022186018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45140507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8878 + ... + 13003.

It is an arithmetic number, because the mean of its divisors is an integer number (11291112).

Almost surely, 2^45140503 is an apocalyptic number.

45140503 is a deficient number, since it is larger than the sum of its proper divisors (23945).

45140503 is a wasteful number, since it uses less digits than its factorization.

45140503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23944.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 45140503 is about 6718.6682460142. The cubic root of 45140503 is about 356.0591341191.

Adding to 45140503 its reverse (30504154), we get a palindrome (75644657).

The spelling of 45140503 in words is "forty-five million, one hundred forty thousand, five hundred three".