461138507 has 4 divisors (see below), whose sum is σ = 461898816. Its totient is φ = 460378200.

The previous prime is 461138497. The next prime is 461138527. The reversal of 461138507 is 705831164.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 461138507 - 2⁶ = 461138443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461138527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379244 + ... + 380457.

It is an arithmetic number, because the mean of its divisors is an integer number (115474704).

Almost surely, 2^461138507 is an apocalyptic number.

461138507 is a deficient number, since it is larger than the sum of its proper divisors (760309).

461138507 is an equidigital number, since it uses as much as digits as its factorization.

461138507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760308.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 461138507 is about 21474.1357684075. The cubic root of 461138507 is about 772.5805961790.

The spelling of 461138507 in words is "four hundred sixty-one million, one hundred thirty-eight thousand, five hundred seven".