172915463 has 6 divisors (see below), whose sum is σ = 201146616. Its totient is φ = 148213212.

The previous prime is 172915451. The next prime is 172915469. The reversal of 172915463 is 364519271.

It is not a de Polignac number, because 172915463 - 2¹⁸ = 172653319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172915469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1764395 + ... + 1764492.

It is an arithmetic number, because the mean of its divisors is an integer number (33524436).

Almost surely, 2^172915463 is an apocalyptic number.

172915463 is a deficient number, since it is larger than the sum of its proper divisors (28231153).

172915463 is an equidigital number, since it uses as much as digits as its factorization.

172915463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528901 (or 3528894 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 172915463 is about 13149.7324307379. The cubic root of 172915463 is about 557.1146906928.

The spelling of 172915463 in words is "one hundred seventy-two million, nine hundred fifteen thousand, four hundred sixty-three".