190181061 has 16 divisors (see below), whose sum is σ = 322000000. Its totient is φ = 108674784.

The previous prime is 190181059. The next prime is 190181087. The reversal of 190181061 is 160181091.

It is not a de Polignac number, because 190181061 - 2¹ = 190181059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

190181061 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190181011) 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 15 ways as a sum of consecutive naturals, for example, 502936 + ... + 503313.

It is an arithmetic number, because the mean of its divisors is an integer number (20125000).

Almost surely, 2^190181061 is an apocalyptic number.

It is an amenable number.

190181061 is a deficient number, since it is larger than the sum of its proper divisors (131818939).

190181061 is a wasteful number, since it uses less digits than its factorization.

190181061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006265 (or 1006259 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 190181061 is about 13790.6149609073. The cubic root of 190181061 is about 575.0722641376.

The spelling of 190181061 in words is "one hundred ninety million, one hundred eighty-one thousand, sixty-one".