172661054 has 8 divisors (see below), whose sum is σ = 259070448. Its totient is φ = 86304240.

The previous prime is 172661053. The next prime is 172661059. The reversal of 172661054 is 450166271.

172661054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 172661054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172661053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3527 + ... + 18914.

It is an arithmetic number, because the mean of its divisors is an integer number (32383806).

Almost surely, 2^172661054 is an apocalyptic number.

172661054 is a deficient number, since it is larger than the sum of its proper divisors (86409394).

172661054 is a wasteful number, since it uses less digits than its factorization.

172661054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26290.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 172661054 is about 13140.0553271286. The cubic root of 172661054 is about 556.8413306032.

The spelling of 172661054 in words is "one hundred seventy-two million, six hundred sixty-one thousand, fifty-four".