172451040223 has 16 divisors (see below), whose sum is σ = 215135391744. Its totient is φ = 134295248160.

The previous prime is 172451040221. The next prime is 172451040259. The reversal of 172451040223 is 322040154271.

It is a happy number.

172451040223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 172451040223 - 2¹ = 172451040221 is a prime.

It is a super-2 number, since 2×172451040223² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172451040221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558015 + ... + 810112.

It is an arithmetic number, because the mean of its divisors is an integer number (13445961984).

Almost surely, 2^172451040223 is an apocalyptic number.

172451040223 is a deficient number, since it is larger than the sum of its proper divisors (42684351521).

172451040223 is a wasteful number, since it uses less digits than its factorization.

172451040223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369782.

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 172451040223 its reverse (322040154271), we get a palindrome (494491194494).

The spelling of 172451040223 in words is "one hundred seventy-two billion, four hundred fifty-one million, forty thousand, two hundred twenty-three".