172344049 has 2 divisors, whose sum is σ = 172344050. Its totient is φ = 172344048.

The previous prime is 172344047. The next prime is 172344061. The reversal of 172344049 is 940443271.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133056225 + 39287824 = 11535^2 + 6268^2 .

It is a cyclic number.

It is not a de Polignac number, because 172344049 - 2¹ = 172344047 is a prime.

Together with 172344047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (172344047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86172024 + 86172025.

It is an arithmetic number, because the mean of its divisors is an integer number (86172025).

Almost surely, 2^172344049 is an apocalyptic number.

It is an amenable number.

172344049 is a deficient number, since it is larger than the sum of its proper divisors (1).

172344049 is an equidigital number, since it uses as much as digits as its factorization.

172344049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 172344049 is about 13127.9872410054. The cubic root of 172344049 is about 556.5003356825.

The spelling of 172344049 in words is "one hundred seventy-two million, three hundred forty-four thousand, forty-nine".