45103031 has 4 divisors (see below), whose sum is σ = 45145464. Its totient is φ = 45060600.

The previous prime is 45103021. The next prime is 45103039. The reversal of 45103031 is 13030154.

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 45103031 - 2¹⁰ = 45102007 is a prime.

It is a super-2 number, since 2×45103031² = 4068566810773922, 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 (45103039) 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, 19580 + ... + 21761.

It is an arithmetic number, because the mean of its divisors is an integer number (11286366).

Almost surely, 2^45103031 is an apocalyptic number.

45103031 is a deficient number, since it is larger than the sum of its proper divisors (42433).

45103031 is a wasteful number, since it uses less digits than its factorization.

45103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42432.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 45103031 is about 6715.8790191605. The cubic root of 45103031 is about 355.9605829985.

Adding to 45103031 its reverse (13030154), we get a palindrome (58133185).

The spelling of 45103031 in words is "forty-five million, one hundred three thousand, thirty-one".