172542303 has 6 divisors (see below), whose sum is σ = 249227784. Its totient is φ = 115028196.

The previous prime is 172542301. The next prime is 172542317. The reversal of 172542303 is 303245271.

172542303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172542303 - 2¹ = 172542301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172542301) 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, 9585675 + ... + 9585692.

It is an arithmetic number, because the mean of its divisors is an integer number (41537964).

Almost surely, 2^172542303 is an apocalyptic number.

172542303 is a deficient number, since it is larger than the sum of its proper divisors (76685481).

172542303 is a wasteful number, since it uses less digits than its factorization.

172542303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19171373 (or 19171370 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 172542303 is about 13135.5358855282. The cubic root of 172542303 is about 556.7136418380.

Adding to 172542303 its reverse (303245271), we get a palindrome (475787574).

The spelling of 172542303 in words is "one hundred seventy-two million, five hundred forty-two thousand, three hundred three".