45031403 has 4 divisors (see below), whose sum is σ = 46584240. Its totient is φ = 43478568.

The previous prime is 45031391. The next prime is 45031411. The reversal of 45031403 is 30413054.

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

It is a cyclic number.

It is not a de Polignac number, because 45031403 - 2¹⁰ = 45030379 is a prime.

It is a super-2 number, since 2×45031403² = 4055654512296818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45034403) 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, 776375 + ... + 776432.

It is an arithmetic number, because the mean of its divisors is an integer number (11646060).

Almost surely, 2^45031403 is an apocalyptic number.

45031403 is a deficient number, since it is larger than the sum of its proper divisors (1552837).

45031403 is a wasteful number, since it uses less digits than its factorization.

45031403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552836.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 45031403 is about 6710.5441657141. The cubic root of 45031403 is about 355.7720498180.

Adding to 45031403 its reverse (30413054), we get a palindrome (75444457).

The spelling of 45031403 in words is "forty-five million, thirty-one thousand, four hundred three".