172559941 has 2 divisors, whose sum is σ = 172559942. Its totient is φ = 172559940.

The previous prime is 172559879. The next prime is 172559951. The reversal of 172559941 is 149955271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156125025 + 16434916 = 12495^2 + 4054^2 .

It is an emirp because it is prime and its reverse (149955271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172559941 - 2¹⁷ = 172428869 is a prime.

It is equal to p_9638269 and since 172559941 and 9638269 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172559951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86279970 + 86279971.

It is an arithmetic number, because the mean of its divisors is an integer number (86279971).

Almost surely, 2^172559941 is an apocalyptic number.

It is an amenable number.

172559941 is a deficient number, since it is larger than the sum of its proper divisors (1).

172559941 is an equidigital number, since it uses as much as digits as its factorization.

172559941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 43.

The square root of 172559941 is about 13136.2072532371. The cubic root of 172559941 is about 556.7326110618.

The spelling of 172559941 in words is "one hundred seventy-two million, five hundred fifty-nine thousand, nine hundred forty-one".