1461091 has 2 divisors, whose sum is σ = 1461092. Its totient is φ = 1461090.

The previous prime is 1461079. The next prime is 1461101. The reversal of 1461091 is 1901641.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1461091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1461001) 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, 730545 + 730546.

It is an arithmetic number, because the mean of its divisors is an integer number (730546).

2^1461091 is an apocalyptic number.

1461091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461091 is an equidigital number, since it uses as much as digits as its factorization.

1461091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1461091 is about 1208.7559720638. The cubic root of 1461091 is about 113.4729699455.

The spelling of 1461091 in words is "one million, four hundred sixty-one thousand, ninety-one".