172740083 has 2 divisors, whose sum is σ = 172740084. Its totient is φ = 172740082.

The previous prime is 172740079. The next prime is 172740103. The reversal of 172740083 is 380047271.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172740083 - 2² = 172740079 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (172740053) 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, 86370041 + 86370042.

It is an arithmetic number, because the mean of its divisors is an integer number (86370042).

Almost surely, 2^172740083 is an apocalyptic number.

172740083 is a deficient number, since it is larger than the sum of its proper divisors (1).

172740083 is an equidigital number, since it uses as much as digits as its factorization.

172740083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 172740083 is about 13143.0621622208. The cubic root of 172740083 is about 556.9262752584.

The spelling of 172740083 in words is "one hundred seventy-two million, seven hundred forty thousand, eighty-three".