1369896961 has 4 divisors (see below), whose sum is σ = 1403309124. Its totient is φ = 1336484800.

The previous prime is 1369896959. The next prime is 1369896973. The reversal of 1369896961 is 1696989631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 821166336 + 548730625 = 28656^2 + 23425^2 .

It is a cyclic number.

It is not a de Polignac number, because 1369896961 - 2¹ = 1369896959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1369896896 and 1369896905.

It is not an unprimeable number, because it can be changed into a prime (1369896901) 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 3 ways as a sum of consecutive naturals, for example, 16706020 + ... + 16706101.

It is an arithmetic number, because the mean of its divisors is an integer number (350827281).

Almost surely, 2^1369896961 is an apocalyptic number.

It is an amenable number.

1369896961 is a deficient number, since it is larger than the sum of its proper divisors (33412163).

1369896961 is an equidigital number, since it uses as much as digits as its factorization.

1369896961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33412162.

The product of its digits is 3779136, while the sum is 58.

The square root of 1369896961 is about 37012.1191098267. The cubic root of 1369896961 is about 1110.6126966689.

The spelling of 1369896961 in words is "one billion, three hundred sixty-nine million, eight hundred ninety-six thousand, nine hundred sixty-one".