461139013 has 8 divisors (see below), whose sum is σ = 473177880. Its totient is φ = 449137920.

The previous prime is 461139011. The next prime is 461139017. The reversal of 461139013 is 310931164.

It can be written as a sum of positive squares in 4 ways, for example, as 15000129 + 446138884 = 3873^2 + 21122^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 461139013 - 2¹ = 461139011 is a prime.

It is a super-2 number, since 2×461139013² = 425298378621228338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461139011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16183 + ... + 34411.

It is an arithmetic number, because the mean of its divisors is an integer number (59147235).

Almost surely, 2^461139013 is an apocalyptic number.

It is an amenable number.

461139013 is a deficient number, since it is larger than the sum of its proper divisors (12038867).

461139013 is a wasteful number, since it uses less digits than its factorization.

461139013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18887.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 461139013 is about 21474.1475500193. The cubic root of 461139013 is about 772.5808787590.

The spelling of 461139013 in words is "four hundred sixty-one million, one hundred thirty-nine thousand, thirteen".