450638131 has 2 divisors, whose sum is σ = 450638132. Its totient is φ = 450638130.

The previous prime is 450638119. The next prime is 450638137. The reversal of 450638131 is 131836054.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 450638131 - 2⁵ = 450638099 is a prime.

It is a super-2 number, since 2×450638131² = 406149450222346322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 450638093 and 450638102.

It is not a weakly prime, because it can be changed into another prime (450638137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225319065 + 225319066.

It is an arithmetic number, because the mean of its divisors is an integer number (225319066).

Almost surely, 2^450638131 is an apocalyptic number.

450638131 is a deficient number, since it is larger than the sum of its proper divisors (1).

450638131 is an equidigital number, since it uses as much as digits as its factorization.

450638131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 450638131 is about 21228.2389990315. The cubic root of 450638131 is about 766.6714878294.

The spelling of 450638131 in words is "four hundred fifty million, six hundred thirty-eight thousand, one hundred thirty-one".