172351087 has 2 divisors, whose sum is σ = 172351088. Its totient is φ = 172351086.

The previous prime is 172351063. The next prime is 172351111. The reversal of 172351087 is 780153271.

It is a balanced prime because it is at equal distance from previous prime (172351063) and next prime (172351111).

It is a cyclic number.

It is not a de Polignac number, because 172351087 - 2¹⁹ = 171826799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172351007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86175543 + 86175544.

It is an arithmetic number, because the mean of its divisors is an integer number (86175544).

Almost surely, 2^172351087 is an apocalyptic number.

172351087 is a deficient number, since it is larger than the sum of its proper divisors (1).

172351087 is an equidigital number, since it uses as much as digits as its factorization.

172351087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 172351087 is about 13128.2552915458. The cubic root of 172351087 is about 556.5079108325.

The spelling of 172351087 in words is "one hundred seventy-two million, three hundred fifty-one thousand, eighty-seven".