1373161 has 2 divisors, whose sum is σ = 1373162. Its totient is φ = 1373160.

The previous prime is 1373159. The next prime is 1373167. The reversal of 1373161 is 1613731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1142761 + 230400 = 1069^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373161 - 2¹ = 1373159 is a prime.

It is a super-2 number, since 2×1373161² = 3771142263842, which contains 22 as substring.

Together with 1373159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1373167) 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 as a sum of consecutive naturals, namely, 686580 + 686581.

It is an arithmetic number, because the mean of its divisors is an integer number (686581).

2^1373161 is an apocalyptic number.

It is an amenable number.

1373161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373161 is an equidigital number, since it uses as much as digits as its factorization.

1373161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378, while the sum is 22.

The square root of 1373161 is about 1171.8195253536. The cubic root of 1373161 is about 111.1494078728.

Adding to 1373161 its reverse (1613731), we get a palindrome (2986892).

The spelling of 1373161 in words is "one million, three hundred seventy-three thousand, one hundred sixty-one".