450015431 has 2 divisors, whose sum is σ = 450015432. Its totient is φ = 450015430.

The previous prime is 450015407. The next prime is 450015443. The reversal of 450015431 is 134510054.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 450015431 - 2⁶ = 450015367 is a prime.

It is a super-2 number, since 2×450015431² = 405027776276231522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 450015397 and 450015406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450015451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225007715 + 225007716.

It is an arithmetic number, because the mean of its divisors is an integer number (225007716).

Almost surely, 2^450015431 is an apocalyptic number.

450015431 is a deficient number, since it is larger than the sum of its proper divisors (1).

450015431 is an equidigital number, since it uses as much as digits as its factorization.

450015431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 450015431 is about 21213.5671446365. The cubic root of 450015431 is about 766.3181914941.

Adding to 450015431 its reverse (134510054), we get a palindrome (584525485).

The spelling of 450015431 in words is "four hundred fifty million, fifteen thousand, four hundred thirty-one".