13461520225 has 12 divisors (see below), whose sum is σ = 16697999340. Its totient is φ = 10765529600.

The previous prime is 13461520183. The next prime is 13461520229. The reversal of 13461520225 is 52202516431.

It can be written as a sum of positive squares in 6 ways, for example, as 7243882321 + 6217637904 = 85111^2 + 78852^2 .

It is not a de Polignac number, because 13461520225 - 2¹⁷ = 13461389153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13461520229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16456 + ... + 164905.

It is an arithmetic number, because the mean of its divisors is an integer number (1391499945).

Almost surely, 2^13461520225 is an apocalyptic number.

It is an amenable number.

13461520225 is a deficient number, since it is larger than the sum of its proper divisors (3236479115).

13461520225 is a wasteful number, since it uses less digits than its factorization.

13461520225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184340 (or 184335 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 13461520225 in words is "thirteen billion, four hundred sixty-one million, five hundred twenty thousand, two hundred twenty-five".