461311139 has 2 divisors, whose sum is σ = 461311140. Its totient is φ = 461311138.

The previous prime is 461311121. The next prime is 461311223. The reversal of 461311139 is 931113164.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461311139 - 2¹² = 461307043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (461311639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230655569 + 230655570.

It is an arithmetic number, because the mean of its divisors is an integer number (230655570).

Almost surely, 2^461311139 is an apocalyptic number.

461311139 is a deficient number, since it is larger than the sum of its proper divisors (1).

461311139 is an equidigital number, since it uses as much as digits as its factorization.

461311139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 29.

The square root of 461311139 is about 21478.1549254120. The cubic root of 461311139 is about 772.6769920137.

The spelling of 461311139 in words is "four hundred sixty-one million, three hundred eleven thousand, one hundred thirty-nine".