450869131 has 2 divisors, whose sum is σ = 450869132. Its totient is φ = 450869130.

The previous prime is 450869129. The next prime is 450869143. The reversal of 450869131 is 131968054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450869131 - 2¹ = 450869129 is a prime.

It is a super-2 number, since 2×450869131² = 406565946577390322, which contains 22 as substring.

Together with 450869129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (450869191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225434565 + 225434566.

It is an arithmetic number, because the mean of its divisors is an integer number (225434566).

Almost surely, 2^450869131 is an apocalyptic number.

450869131 is a deficient number, since it is larger than the sum of its proper divisors (1).

450869131 is an equidigital number, since it uses as much as digits as its factorization.

450869131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 450869131 is about 21233.6791677750. The cubic root of 450869131 is about 766.8024656947.

The spelling of 450869131 in words is "four hundred fifty million, eight hundred sixty-nine thousand, one hundred thirty-one".