172065353 has 2 divisors, whose sum is σ = 172065354. Its totient is φ = 172065352.

The previous prime is 172065337. The next prime is 172065367. The reversal of 172065353 is 353560271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104611984 + 67453369 = 10228^2 + 8213^2 .

It is a cyclic number.

It is not a de Polignac number, because 172065353 - 2⁴ = 172065337 is a prime.

It is not a weakly prime, because it can be changed into another prime (172065373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86032676 + 86032677.

It is an arithmetic number, because the mean of its divisors is an integer number (86032677).

Almost surely, 2^172065353 is an apocalyptic number.

It is an amenable number.

172065353 is a deficient number, since it is larger than the sum of its proper divisors (1).

172065353 is an equidigital number, since it uses as much as digits as its factorization.

172065353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 172065353 is about 13117.3683717429. The cubic root of 172065353 is about 556.2002032938.

The spelling of 172065353 in words is "one hundred seventy-two million, sixty-five thousand, three hundred fifty-three".