46161721 has 2 divisors, whose sum is σ = 46161722. Its totient is φ = 46161720.

The previous prime is 46161701. The next prime is 46161737. The reversal of 46161721 is 12716164.

46161721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35271721 + 10890000 = 5939^2 + 3300^2 .

It is a cyclic number.

It is not a de Polignac number, because 46161721 - 2²¹ = 44064569 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46161721.

It is not a weakly prime, because it can be changed into another prime (46161701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23080860 + 23080861.

It is an arithmetic number, because the mean of its divisors is an integer number (23080861).

Almost surely, 2^46161721 is an apocalyptic number.

It is an amenable number.

46161721 is a deficient number, since it is larger than the sum of its proper divisors (1).

46161721 is an equidigital number, since it uses as much as digits as its factorization.

46161721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 28.

The square root of 46161721 is about 6794.2417531318. The cubic root of 46161721 is about 358.7241902543.

Adding to 46161721 its reverse (12716164), we get a palindrome (58877885).

The spelling of 46161721 in words is "forty-six million, one hundred sixty-one thousand, seven hundred twenty-one".