1631341 has 2 divisors, whose sum is σ = 1631342. Its totient is φ = 1631340.

The previous prime is 1631309. The next prime is 1631351. The reversal of 1631341 is 1431361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1371241 + 260100 = 1171^2 + 510^2 .

It is an emirp because it is prime and its reverse (1431361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1631341 - 2⁵ = 1631309 is a prime.

It is a super-3 number, since 3×1631341³ = 13024333514116754463, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1631351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815670 + 815671.

It is an arithmetic number, because the mean of its divisors is an integer number (815671).

2^1631341 is an apocalyptic number.

It is an amenable number.

1631341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1631341 is an equidigital number, since it uses as much as digits as its factorization.

1631341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 19.

The square root of 1631341 is about 1277.2396016410. The cubic root of 1631341 is about 117.7194570704.

The spelling of 1631341 in words is "one million, six hundred thirty-one thousand, three hundred forty-one".