461261530 has 32 divisors (see below), whose sum is σ = 860317200. Its totient is φ = 177848832.

The previous prime is 461261497. The next prime is 461261531. The reversal of 461261530 is 35162164.

It is a Cunningham number, because it is equal to 21477²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 192071881 + 269189649 = 13859^2 + 16407^2 .

It is not an unprimeable number, because it can be changed into a prime (461261531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275536 + ... + 277204.

Almost surely, 2^461261530 is an apocalyptic number.

461261530 is a deficient number, since it is larger than the sum of its proper divisors (399055670).

461261530 is a wasteful number, since it uses less digits than its factorization.

461261530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 461261530 is about 21477.0000232807. Note that the first 4 decimals coincide. The cubic root of 461261530 is about 772.6492933494.

The spelling of 461261530 in words is "four hundred sixty-one million, two hundred sixty-one thousand, five hundred thirty".