172703045 has 4 divisors (see below), whose sum is σ = 207243660. Its totient is φ = 138162432.

The previous prime is 172703023. The next prime is 172703123. The reversal of 172703045 is 540307271.

172703045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99720196 + 72982849 = 9986^2 + 8543^2 .

It is a cyclic number.

It is not a de Polignac number, because 172703045 - 2¹² = 172698949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172702999 and 172703017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17270300 + ... + 17270309.

It is an arithmetic number, because the mean of its divisors is an integer number (51810915).

Almost surely, 2^172703045 is an apocalyptic number.

It is an amenable number.

172703045 is a deficient number, since it is larger than the sum of its proper divisors (34540615).

172703045 is an equidigital number, since it uses as much as digits as its factorization.

172703045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34540614.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 172703045 is about 13141.6530543155. The cubic root of 172703045 is about 556.8864680338.

The spelling of 172703045 in words is "one hundred seventy-two million, seven hundred three thousand, forty-five".