172010071 has 2 divisors, whose sum is σ = 172010072. Its totient is φ = 172010070.

The previous prime is 172010053. The next prime is 172010087. The reversal of 172010071 is 170010271.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172010071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172011071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86005035 + 86005036.

It is an arithmetic number, because the mean of its divisors is an integer number (86005036).

Almost surely, 2^172010071 is an apocalyptic number.

172010071 is a deficient number, since it is larger than the sum of its proper divisors (1).

172010071 is an equidigital number, since it uses as much as digits as its factorization.

172010071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 172010071 is about 13115.2609962593. The cubic root of 172010071 is about 556.1406306709.

The spelling of 172010071 in words is "one hundred seventy-two million, ten thousand, seventy-one".