46136221 has 2 divisors, whose sum is σ = 46136222. Its totient is φ = 46136220.

The previous prime is 46136203. The next prime is 46136231. The reversal of 46136221 is 12263164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30096196 + 16040025 = 5486^2 + 4005^2 .

It is a cyclic number.

It is not a de Polignac number, because 46136221 - 2¹⁷ = 46005149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46136201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23068110 + 23068111.

It is an arithmetic number, because the mean of its divisors is an integer number (23068111).

Almost surely, 2^46136221 is an apocalyptic number.

It is an amenable number.

46136221 is a deficient number, since it is larger than the sum of its proper divisors (1).

46136221 is an equidigital number, since it uses as much as digits as its factorization.

46136221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 46136221 is about 6792.3649048030. The cubic root of 46136221 is about 358.6581243196.

Adding to 46136221 its reverse (12263164), we get a palindrome (58399385).

The spelling of 46136221 in words is "forty-six million, one hundred thirty-six thousand, two hundred twenty-one".