451132531 has 2 divisors, whose sum is σ = 451132532. Its totient is φ = 451132530.

The previous prime is 451132501. The next prime is 451132571. The reversal of 451132531 is 135231154.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 451132531 - 2¹¹ = 451130483 is a prime.

It is a super-2 number, since 2×451132531² = 407041121052931922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 451132496 and 451132505.

It is not a weakly prime, because it can be changed into another prime (451132501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225566265 + 225566266.

It is an arithmetic number, because the mean of its divisors is an integer number (225566266).

Almost surely, 2^451132531 is an apocalyptic number.

451132531 is a deficient number, since it is larger than the sum of its proper divisors (1).

451132531 is an equidigital number, since it uses as much as digits as its factorization.

451132531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 451132531 is about 21239.8806729228. The cubic root of 451132531 is about 766.9517599034.

Adding to 451132531 its reverse (135231154), we get a palindrome (586363685).

The spelling of 451132531 in words is "four hundred fifty-one million, one hundred thirty-two thousand, five hundred thirty-one".