1361688171 has 12 divisors (see below), whose sum is σ = 1865985912. Its totient is φ = 883254528.

The previous prime is 1361688169. The next prime is 1361688179. The reversal of 1361688171 is 1718861631.

It is a happy number.

It is not a de Polignac number, because 1361688171 - 2¹ = 1361688169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361688179) 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, 161670 + ... + 169883.

It is an arithmetic number, because the mean of its divisors is an integer number (155498826).

Almost surely, 2^1361688171 is an apocalyptic number.

1361688171 is a deficient number, since it is larger than the sum of its proper divisors (504297741).

1361688171 is an equidigital number, since it uses as much as digits as its factorization.

1361688171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331630 (or 331593 counting only the distinct ones).

The product of its digits is 48384, while the sum is 42.

The square root of 1361688171 is about 36901.0592124400. The cubic root of 1361688171 is about 1108.3898878008.

The spelling of 1361688171 in words is "one billion, three hundred sixty-one million, six hundred eighty-eight thousand, one hundred seventy-one".