855334451 has 2 divisors, whose sum is σ = 855334452. Its totient is φ = 855334450.

The previous prime is 855334433. The next prime is 855334463. The reversal of 855334451 is 154433558.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855334451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (855334471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427667225 + 427667226.

It is an arithmetic number, because the mean of its divisors is an integer number (427667226).

Almost surely, 2^855334451 is an apocalyptic number.

855334451 is a deficient number, since it is larger than the sum of its proper divisors (1).

855334451 is an equidigital number, since it uses as much as digits as its factorization.

855334451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144000, while the sum is 38.

The square root of 855334451 is about 29246.1014666912. The cubic root of 855334451 is about 949.2457359274.

The spelling of 855334451 in words is "eight hundred fifty-five million, three hundred thirty-four thousand, four hundred fifty-one".