13020045 has 16 divisors (see below), whose sum is σ = 22057920. Its totient is φ = 6535424.

The previous prime is 13020037. The next prime is 13020053. The reversal of 13020045 is 54002031.

It is an interprime number because it is at equal distance from previous prime (13020037) and next prime (13020053).

It is a cyclic number.

It is not a de Polignac number, because 13020045 - 2³ = 13020037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25275 + ... + 25784.

It is an arithmetic number, because the mean of its divisors is an integer number (1378620).

Almost surely, 2^13020045 is an apocalyptic number.

13020045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13020045 is a deficient number, since it is larger than the sum of its proper divisors (9037875).

13020045 is a wasteful number, since it uses less digits than its factorization.

13020045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51084.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 13020045 is about 3608.3299461108. The cubic root of 13020045 is about 235.2542592840.

Adding to 13020045 its reverse (54002031), we get a palindrome (67022076).

The spelling of 13020045 in words is "thirteen million, twenty thousand, forty-five".