461734139 has 2 divisors, whose sum is σ = 461734140. Its totient is φ = 461734138.

The previous prime is 461734121. The next prime is 461734151. The reversal of 461734139 is 931437164.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 461734139 - 2¹² = 461730043 is a prime.

It is not a weakly prime, because it can be changed into another prime (461734199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230867069 + 230867070.

It is an arithmetic number, because the mean of its divisors is an integer number (230867070).

Almost surely, 2^461734139 is an apocalyptic number.

461734139 is a deficient number, since it is larger than the sum of its proper divisors (1).

461734139 is an equidigital number, since it uses as much as digits as its factorization.

461734139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 461734139 is about 21487.9998836560. Note that the first 3 decimals coincide. The cubic root of 461734139 is about 772.9130890071.

The spelling of 461734139 in words is "four hundred sixty-one million, seven hundred thirty-four thousand, one hundred thirty-nine".