45145013 has 8 divisors (see below), whose sum is σ = 47918808. Its totient is φ = 42384384.

The previous prime is 45144997. The next prime is 45145019. The reversal of 45145013 is 31054154.

It can be written as a sum of positive squares in 4 ways, for example, as 15311569 + 29833444 = 3913^2 + 5462^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45145013 - 2⁴ = 45144997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45145013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45145019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4295 + ... + 10427.

It is an arithmetic number, because the mean of its divisors is an integer number (5989851).

Almost surely, 2^45145013 is an apocalyptic number.

It is an amenable number.

45145013 is a deficient number, since it is larger than the sum of its proper divisors (2773795).

45145013 is a wasteful number, since it uses less digits than its factorization.

45145013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6583.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 45145013 is about 6719.0038696223. The cubic root of 45145013 is about 356.0709917127.

Adding to 45145013 its reverse (31054154), we get a palindrome (76199167).

The spelling of 45145013 in words is "forty-five million, one hundred forty-five thousand, thirteen".