46136621 has 4 divisors (see below), whose sum is σ = 46655100. Its totient is φ = 45618144.

The previous prime is 46136599. The next prime is 46136633. The reversal of 46136621 is 12663164.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4791721 + 41344900 = 2189^2 + 6430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46136621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46136221) 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 in 3 ways as a sum of consecutive naturals, for example, 259106 + ... + 259283.

It is an arithmetic number, because the mean of its divisors is an integer number (11663775).

Almost surely, 2^46136621 is an apocalyptic number.

It is an amenable number.

46136621 is a deficient number, since it is larger than the sum of its proper divisors (518479).

46136621 is an equidigital number, since it uses as much as digits as its factorization.

46136621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518478.

The product of its digits is 5184, while the sum is 29.

The square root of 46136621 is about 6792.3943495648. The cubic root of 46136621 is about 358.6591608359.

Adding to 46136621 its reverse (12663164), we get a palindrome (58799785).

The spelling of 46136621 in words is "forty-six million, one hundred thirty-six thousand, six hundred twenty-one".