172094537 has 2 divisors, whose sum is σ = 172094538. Its totient is φ = 172094536.

The previous prime is 172094501. The next prime is 172094561. The reversal of 172094537 is 735490271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162919696 + 9174841 = 12764^2 + 3029^2 .

It is an emirp because it is prime and its reverse (735490271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172094537 - 2¹⁰ = 172093513 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172094537.

It is not a weakly prime, because it can be changed into another prime (172094567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86047268 + 86047269.

It is an arithmetic number, because the mean of its divisors is an integer number (86047269).

Almost surely, 2^172094537 is an apocalyptic number.

It is an amenable number.

172094537 is a deficient number, since it is larger than the sum of its proper divisors (1).

172094537 is an equidigital number, since it uses as much as digits as its factorization.

172094537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 172094537 is about 13118.4807428299. The cubic root of 172094537 is about 556.2316472167.

The spelling of 172094537 in words is "one hundred seventy-two million, ninety-four thousand, five hundred thirty-seven".