13245451515 has 12 divisors (see below), whose sum is σ = 22958782704. Its totient is φ = 7064240784.

The previous prime is 13245451511. The next prime is 13245451523. The reversal of 13245451515 is 51515454231.

13245451515 is a `hidden beast` number, since 132 + 4 + 5 + 4 + 5 + 1 + 515 = 666.

It is not a de Polignac number, because 13245451515 - 2² = 13245451511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13245451515.

It is not an unprimeable number, because it can be changed into a prime (13245451511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147171639 + ... + 147171728.

It is an arithmetic number, because the mean of its divisors is an integer number (1913231892).

Almost surely, 2^13245451515 is an apocalyptic number.

13245451515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13245451515 is a deficient number, since it is larger than the sum of its proper divisors (9713331189).

13245451515 is a wasteful number, since it uses less digits than its factorization.

13245451515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294343378 (or 294343375 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The spelling of 13245451515 in words is "thirteen billion, two hundred forty-five million, four hundred fifty-one thousand, five hundred fifteen".