172554745 has 16 divisors (see below), whose sum is σ = 226975680. Its totient is φ = 124891200.

The previous prime is 172554737. The next prime is 172554749. The reversal of 172554745 is 547455271.

It is not a de Polignac number, because 172554745 - 2³ = 172554737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172554698 and 172554707.

It is not an unprimeable number, because it can be changed into a prime (172554749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4171 + ... + 19039.

It is an arithmetic number, because the mean of its divisors is an integer number (14185980).

Almost surely, 2^172554745 is an apocalyptic number.

It is an amenable number.

172554745 is a deficient number, since it is larger than the sum of its proper divisors (54420935).

172554745 is a wasteful number, since it uses less digits than its factorization.

172554745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15096.

The product of its digits is 196000, while the sum is 40.

The square root of 172554745 is about 13136.0094777676. The cubic root of 172554745 is about 556.7270230292.

The spelling of 172554745 in words is "one hundred seventy-two million, five hundred fifty-four thousand, seven hundred forty-five".