172155341 has 2 divisors, whose sum is σ = 172155342. Its totient is φ = 172155340.

The previous prime is 172155337. The next prime is 172155383. The reversal of 172155341 is 143551271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108889225 + 63266116 = 10435^2 + 7954^2 .

It is an emirp because it is prime and its reverse (143551271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172155341 - 2² = 172155337 is a prime.

It is a super-2 number, since 2×172155341² = 59274922869652562, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172155301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86077670 + 86077671.

It is an arithmetic number, because the mean of its divisors is an integer number (86077671).

Almost surely, 2^172155341 is an apocalyptic number.

It is an amenable number.

172155341 is a deficient number, since it is larger than the sum of its proper divisors (1).

172155341 is an equidigital number, since it uses as much as digits as its factorization.

172155341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 29.

The square root of 172155341 is about 13120.7980321320. The cubic root of 172155341 is about 556.2971482823.

The spelling of 172155341 in words is "one hundred seventy-two million, one hundred fifty-five thousand, three hundred forty-one".