1394612161 has 8 divisors (see below), whose sum is σ = 1422990504. Its totient is φ = 1366310400.

The previous prime is 1394612147. The next prime is 1394612173. The reversal of 1394612161 is 1612164931.

It can be written as a sum of positive squares in 4 ways, for example, as 539400625 + 855211536 = 23225^2 + 29244^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1394612161 - 2⁹ = 1394611649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394612101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18385 + ... + 55921.

It is an arithmetic number, because the mean of its divisors is an integer number (177873813).

Almost surely, 2^1394612161 is an apocalyptic number.

It is an amenable number.

1394612161 is a deficient number, since it is larger than the sum of its proper divisors (28378343).

1394612161 is an equidigital number, since it uses as much as digits as its factorization.

1394612161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38291.

The product of its digits is 7776, while the sum is 34.

The square root of 1394612161 is about 37344.5064366903. The cubic root of 1394612161 is about 1117.2520219769.

The spelling of 1394612161 in words is "one billion, three hundred ninety-four million, six hundred twelve thousand, one hundred sixty-one".