172354043 has 2 divisors, whose sum is σ = 172354044. Its totient is φ = 172354042.

The previous prime is 172354033. The next prime is 172354067. The reversal of 172354043 is 340453271.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172354043 - 2²⁰ = 171305467 is a prime.

It is a super-2 number, since 2×172354043² = 59411832276891698, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 172353997 and 172354015.

It is not a weakly prime, because it can be changed into another prime (172354033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86177021 + 86177022.

It is an arithmetic number, because the mean of its divisors is an integer number (86177022).

Almost surely, 2^172354043 is an apocalyptic number.

172354043 is a deficient number, since it is larger than the sum of its proper divisors (1).

172354043 is an equidigital number, since it uses as much as digits as its factorization.

172354043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 172354043 is about 13128.3678726641. The cubic root of 172354043 is about 556.5110923770.

The spelling of 172354043 in words is "one hundred seventy-two million, three hundred fifty-four thousand, forty-three".