13351977 has 12 divisors (see below), whose sum is σ = 19951620. Its totient is φ = 8594208.

The previous prime is 13351951. The next prime is 13351981. The reversal of 13351977 is 77915331.

13351977 is a `hidden beast` number, since 133 + 519 + 7 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11128896 + 2223081 = 3336^2 + 1491^2 .

It is not a de Polignac number, because 13351977 - 2¹¹ = 13349929 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13351907) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 25318 + ... + 25839.

It is an arithmetic number, because the mean of its divisors is an integer number (1662635).

Almost surely, 2^13351977 is an apocalyptic number.

It is an amenable number.

13351977 is a deficient number, since it is larger than the sum of its proper divisors (6599643).

13351977 is a wasteful number, since it uses less digits than its factorization.

13351977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51192 (or 51189 counting only the distinct ones).

The product of its digits is 19845, while the sum is 36.

The square root of 13351977 is about 3654.0357141112. The cubic root of 13351977 is about 237.2366913809.

The spelling of 13351977 in words is "thirteen million, three hundred fifty-one thousand, nine hundred seventy-seven".