172033541 has 2 divisors, whose sum is σ = 172033542. Its totient is φ = 172033540.

The previous prime is 172033507. The next prime is 172033559. The reversal of 172033541 is 145330271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86397025 + 85636516 = 9295^2 + 9254^2 .

It is an emirp because it is prime and its reverse (145330271) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172033541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172033541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172033571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86016770 + 86016771.

It is an arithmetic number, because the mean of its divisors is an integer number (86016771).

Almost surely, 2^172033541 is an apocalyptic number.

It is an amenable number.

172033541 is a deficient number, since it is larger than the sum of its proper divisors (1).

172033541 is an equidigital number, since it uses as much as digits as its factorization.

172033541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 172033541 is about 13116.1557249066. The cubic root of 172033541 is about 556.1659238158.

The spelling of 172033541 in words is "one hundred seventy-two million, thirty-three thousand, five hundred forty-one".