451531051 has 2 divisors, whose sum is σ = 451531052. Its totient is φ = 451531050.

The previous prime is 451531049. The next prime is 451531097. The reversal of 451531051 is 150135154.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 451531051 - 2¹ = 451531049 is a prime.

Together with 451531049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (451531651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225765525 + 225765526.

It is an arithmetic number, because the mean of its divisors is an integer number (225765526).

Almost surely, 2^451531051 is an apocalyptic number.

451531051 is a deficient number, since it is larger than the sum of its proper divisors (1).

451531051 is an equidigital number, since it uses as much as digits as its factorization.

451531051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 451531051 is about 21249.2600106451. The cubic root of 451531051 is about 767.1775292272.

The spelling of 451531051 in words is "four hundred fifty-one million, five hundred thirty-one thousand, fifty-one".