106172523 has 6 divisors (see below), whose sum is σ = 153360324. Its totient is φ = 70781676.

The previous prime is 106172501. The next prime is 106172527. The reversal of 106172523 is 325271601.

It is a happy number.

106172523 is a `hidden beast` number, since 1 + 0 + 617 + 25 + 23 = 666.

It is not a de Polignac number, because 106172523 - 2⁵ = 106172491 is a prime.

It is a super-2 number, since 2×106172523² = 22545209280371058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106172527) 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 5 ways as a sum of consecutive naturals, for example, 5898465 + ... + 5898482.

It is an arithmetic number, because the mean of its divisors is an integer number (25560054).

Almost surely, 2^106172523 is an apocalyptic number.

106172523 is a deficient number, since it is larger than the sum of its proper divisors (47187801).

106172523 is a wasteful number, since it uses less digits than its factorization.

106172523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11796953 (or 11796950 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 106172523 is about 10304.0051921571. The cubic root of 106172523 is about 473.5189666755.

The spelling of 106172523 in words is "one hundred six million, one hundred seventy-two thousand, five hundred twenty-three".