451131847 has 2 divisors, whose sum is σ = 451131848. Its totient is φ = 451131846.

The previous prime is 451131797. The next prime is 451131851. The reversal of 451131847 is 748131154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451131847 - 2⁷ = 451131719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451131887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225565923 + 225565924.

It is an arithmetic number, because the mean of its divisors is an integer number (225565924).

Almost surely, 2^451131847 is an apocalyptic number.

451131847 is a deficient number, since it is larger than the sum of its proper divisors (1).

451131847 is an equidigital number, since it uses as much as digits as its factorization.

451131847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 451131847 is about 21239.8645711313. The cubic root of 451131847 is about 766.9513722898.

The spelling of 451131847 in words is "four hundred fifty-one million, one hundred thirty-one thousand, eight hundred forty-seven".