190193145 has 8 divisors (see below), whose sum is σ = 304309056. Its totient is φ = 101436336.

The previous prime is 190193123. The next prime is 190193147. The reversal of 190193145 is 541391091.

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

It is not a de Polignac number, because 190193145 - 2²⁷ = 55975417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (190193147) 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 7 ways as a sum of consecutive naturals, for example, 6339757 + ... + 6339786.

It is an arithmetic number, because the mean of its divisors is an integer number (38038632).

Almost surely, 2^190193145 is an apocalyptic number.

190193145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190193145 is a deficient number, since it is larger than the sum of its proper divisors (114115911).

190193145 is a wasteful number, since it uses less digits than its factorization.

190193145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12679551.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 190193145 is about 13791.0530779923. The cubic root of 190193145 is about 575.0844438048.

The spelling of 190193145 in words is "one hundred ninety million, one hundred ninety-three thousand, one hundred forty-five".