461531849 has 2 divisors, whose sum is σ = 461531850. Its totient is φ = 461531848.

The previous prime is 461531789. The next prime is 461531891. The reversal of 461531849 is 948135164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369985225 + 91546624 = 19235^2 + 9568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461531849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (461531899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230765924 + 230765925.

It is an arithmetic number, because the mean of its divisors is an integer number (230765925).

Almost surely, 2^461531849 is an apocalyptic number.

It is an amenable number.

461531849 is a deficient number, since it is larger than the sum of its proper divisors (1).

461531849 is an equidigital number, since it uses as much as digits as its factorization.

461531849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 461531849 is about 21483.2923221745. The cubic root of 461531849 is about 772.8001990601.

The spelling of 461531849 in words is "four hundred sixty-one million, five hundred thirty-one thousand, eight hundred forty-nine".