190172061 has 12 divisors (see below), whose sum is σ = 275845440. Its totient is φ = 126249480.

The previous prime is 190172051. The next prime is 190172077. The reversal of 190172061 is 160271091.

It is not a de Polignac number, because 190172061 - 2¹⁴ = 190155677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190172041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42055 + ... + 46356.

It is an arithmetic number, because the mean of its divisors is an integer number (22987120).

Almost surely, 2^190172061 is an apocalyptic number.

It is an amenable number.

190172061 is a deficient number, since it is larger than the sum of its proper divisors (85673379).

190172061 is a wasteful number, since it uses less digits than its factorization.

190172061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88656 (or 88653 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 190172061 is about 13790.2886481756. The cubic root of 190172061 is about 575.0631925508.

The spelling of 190172061 in words is "one hundred ninety million, one hundred seventy-two thousand, sixty-one".