172144298503 has 8 divisors (see below), whose sum is σ = 185059941120. Its totient is φ = 159614197560.

The previous prime is 172144298483. The next prime is 172144298509. The reversal of 172144298503 is 305892441271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-172144298503 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 (172144298509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96384493 + ... + 96386278.

It is an arithmetic number, because the mean of its divisors is an integer number (23132492640).

Almost surely, 2^172144298503 is an apocalyptic number.

172144298503 is a deficient number, since it is larger than the sum of its proper divisors (12915642617).

172144298503 is a wasteful number, since it uses less digits than its factorization.

172144298503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192770837.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 172144298503 in words is "one hundred seventy-two billion, one hundred forty-four million, two hundred ninety-eight thousand, five hundred three".