1949161 has 2 divisors, whose sum is σ = 1949162. Its totient is φ = 1949160.

The previous prime is 1949141. The next prime is 1949179. The reversal of 1949161 is 1619491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1946025 + 3136 = 1395^2 + 56^2 .

It is a cyclic number.

It is not a de Polignac number, because 1949161 - 2⁹ = 1948649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1949111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974580 + 974581.

It is an arithmetic number, because the mean of its divisors is an integer number (974581).

2^1949161 is an apocalyptic number.

It is an amenable number.

1949161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949161 is an equidigital number, since it uses as much as digits as its factorization.

1949161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 31.

The square root of 1949161 is about 1396.1235618669. The cubic root of 1949161 is about 124.9153773917.

The spelling of 1949161 in words is "one million, nine hundred forty-nine thousand, one hundred sixty-one".