172770513 has 8 divisors (see below), whose sum is σ = 234707328. Its totient is φ = 113007024.

The previous prime is 172770491. The next prime is 172770523. The reversal of 172770513 is 315077271.

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

It is not a de Polignac number, because 172770513 - 2¹³ = 172762321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172770523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543145 + ... + 543462.

It is an arithmetic number, because the mean of its divisors is an integer number (29338416).

Almost surely, 2^172770513 is an apocalyptic number.

It is an amenable number.

172770513 is a deficient number, since it is larger than the sum of its proper divisors (61936815).

172770513 is a wasteful number, since it uses less digits than its factorization.

172770513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086663.

The product of its (nonzero) digits is 10290, while the sum is 33.

The square root of 172770513 is about 13144.2197562274. The cubic root of 172770513 is about 556.9589761641.

The spelling of 172770513 in words is "one hundred seventy-two million, seven hundred seventy thousand, five hundred thirteen".