190189156 has 12 divisors (see below), whose sum is σ = 332969392. Its totient is φ = 95055048.

The previous prime is 190189121. The next prime is 190189157. The reversal of 190189156 is 651981091.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (190189157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2731 + ... + 19693.

Almost surely, 2^190189156 is an apocalyptic number.

It is an amenable number.

190189156 is a deficient number, since it is larger than the sum of its proper divisors (142780236).

190189156 is a wasteful number, since it uses less digits than its factorization.

190189156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19770 (or 19768 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 40.

The square root of 190189156 is about 13790.9084544855. The cubic root of 190189156 is about 575.0804232815.

The spelling of 190189156 in words is "one hundred ninety million, one hundred eighty-nine thousand, one hundred fifty-six".