13061997 has 12 divisors (see below), whose sum is σ = 20318844. Its totient is φ = 8038080.

The previous prime is 13061957. The next prime is 13062017. The reversal of 13061997 is 79916031.

13061997 is a `hidden beast` number, since 1 + 30 + 619 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3006756 + 10055241 = 1734^2 + 3171^2 .

It is not a de Polignac number, because 13061997 - 2¹⁰ = 13060973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13061927) 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, 55704 + ... + 55937.

It is an arithmetic number, because the mean of its divisors is an integer number (1693237).

Almost surely, 2^13061997 is an apocalyptic number.

It is an amenable number.

13061997 is a deficient number, since it is larger than the sum of its proper divisors (7256847).

13061997 is a wasteful number, since it uses less digits than its factorization.

13061997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111660 (or 111657 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 13061997 is about 3614.1384865553. The cubic root of 13061997 is about 235.5066599872.

The spelling of 13061997 in words is "thirteen million, sixty-one thousand, nine hundred ninety-seven".