450722131 has 2 divisors, whose sum is σ = 450722132. Its totient is φ = 450722130.

The previous prime is 450722119. The next prime is 450722183. The reversal of 450722131 is 131227054.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450722131 - 2¹⁹ = 450197843 is a prime.

It is a super-2 number, since 2×450722131² = 406300878746362322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 450722096 and 450722105.

It is not a weakly prime, because it can be changed into another prime (450723131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225361065 + 225361066.

It is an arithmetic number, because the mean of its divisors is an integer number (225361066).

Almost surely, 2^450722131 is an apocalyptic number.

450722131 is a deficient number, since it is larger than the sum of its proper divisors (1).

450722131 is an equidigital number, since it uses as much as digits as its factorization.

450722131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 450722131 is about 21230.2174035030. The cubic root of 450722131 is about 766.7191213218.

Adding to 450722131 its reverse (131227054), we get a palindrome (581949185).

The spelling of 450722131 in words is "four hundred fifty million, seven hundred twenty-two thousand, one hundred thirty-one".