1461139 has 2 divisors, whose sum is σ = 1461140. Its totient is φ = 1461138.

The previous prime is 1461127. The next prime is 1461151. The reversal of 1461139 is 9311641.

It is a balanced prime because it is at equal distance from previous prime (1461127) and next prime (1461151).

It is a cyclic number.

It is not a de Polignac number, because 1461139 - 2¹¹ = 1459091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1461169) 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, 730569 + 730570.

It is an arithmetic number, because the mean of its divisors is an integer number (730570).

2^1461139 is an apocalyptic number.

1461139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461139 is an equidigital number, since it uses as much as digits as its factorization.

1461139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 25.

The square root of 1461139 is about 1208.7758270250. The cubic root of 1461139 is about 113.4742125428.

It can be divided in two parts, 1461 and 139, that added together give a square (1600 = 40²).

The spelling of 1461139 in words is "one million, four hundred sixty-one thousand, one hundred thirty-nine".