172463149 has 2 divisors, whose sum is σ = 172463150. Its totient is φ = 172463148.

The previous prime is 172463143. The next prime is 172463173. The reversal of 172463149 is 941364271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95199049 + 77264100 = 9757^2 + 8790^2 .

It is a cyclic number.

It is not a de Polignac number, because 172463149 - 2¹¹ = 172461101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172463143) 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, 86231574 + 86231575.

It is an arithmetic number, because the mean of its divisors is an integer number (86231575).

Almost surely, 2^172463149 is an apocalyptic number.

It is an amenable number.

172463149 is a deficient number, since it is larger than the sum of its proper divisors (1).

172463149 is an equidigital number, since it uses as much as digits as its factorization.

172463149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 172463149 is about 13132.5225680370. The cubic root of 172463149 is about 556.6284977873.

The spelling of 172463149 in words is "one hundred seventy-two million, four hundred sixty-three thousand, one hundred forty-nine".