171130451 has 2 divisors, whose sum is σ = 171130452. Its totient is φ = 171130450.

The previous prime is 171130429. The next prime is 171130489. The reversal of 171130451 is 154031171.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 171130451 - 2⁶ = 171130387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (171130151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85565225 + 85565226.

It is an arithmetic number, because the mean of its divisors is an integer number (85565226).

Almost surely, 2^171130451 is an apocalyptic number.

171130451 is a deficient number, since it is larger than the sum of its proper divisors (1).

171130451 is an equidigital number, since it uses as much as digits as its factorization.

171130451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 171130451 is about 13081.6837983495. The cubic root of 171130451 is about 555.1910183054.

The spelling of 171130451 in words is "one hundred seventy-one million, one hundred thirty thousand, four hundred fifty-one".