45171513 has 24 divisors (see below), whose sum is σ = 68062176. Its totient is φ = 29937600.

The previous prime is 45171491. The next prime is 45171523. The reversal of 45171513 is 31517154.

It is not a de Polignac number, because 45171513 - 2⁶ = 45171449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45171523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50833 + ... + 51713.

It is an arithmetic number, because the mean of its divisors is an integer number (2835924).

Almost surely, 2^45171513 is an apocalyptic number.

It is an amenable number.

45171513 is a deficient number, since it is larger than the sum of its proper divisors (22890663).

45171513 is an equidigital number, since it uses as much as digits as its factorization.

45171513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1095 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 45171513 is about 6720.9755988249. The cubic root of 45171513 is about 356.1406489866.

Adding to 45171513 its reverse (31517154), we get a palindrome (76688667).

It can be divided in two parts, 4517151 and 3, that added together give a palindrome (4517154).

The spelling of 45171513 in words is "forty-five million, one hundred seventy-one thousand, five hundred thirteen".