461274139 has 2 divisors, whose sum is σ = 461274140. Its totient is φ = 461274138.

The previous prime is 461274097. The next prime is 461274169. The reversal of 461274139 is 931472164.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 461274139 - 2¹⁹ = 460749851 is a prime.

It is equal to p_24418369 and since 461274139 and 24418369 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 461274098 and 461274107.

It is not a weakly prime, because it can be changed into another prime (461274169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230637069 + 230637070.

It is an arithmetic number, because the mean of its divisors is an integer number (230637070).

Almost surely, 2^461274139 is an apocalyptic number.

461274139 is a deficient number, since it is larger than the sum of its proper divisors (1).

461274139 is an equidigital number, since it uses as much as digits as its factorization.

461274139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 461274139 is about 21477.2935678591. The cubic root of 461274139 is about 772.6563336404.

The spelling of 461274139 in words is "four hundred sixty-one million, two hundred seventy-four thousand, one hundred thirty-nine".