190395145 has 16 divisors (see below), whose sum is σ = 230918400. Its totient is φ = 150696000.

The previous prime is 190395137. The next prime is 190395157. The reversal of 190395145 is 541593091.

It is a happy number.

It is not a de Polignac number, because 190395145 - 2³ = 190395137 is a prime.

It is a super-2 number, since 2×190395145² = 72500622479142050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 317556 + ... + 318154.

It is an arithmetic number, because the mean of its divisors is an integer number (14432400).

Almost surely, 2^190395145 is an apocalyptic number.

It is an amenable number.

190395145 is a deficient number, since it is larger than the sum of its proper divisors (40523255).

190395145 is a wasteful number, since it uses less digits than its factorization.

190395145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 190395145 is about 13798.3747231332. The cubic root of 190395145 is about 575.2879666600.

It can be divided in two parts, 1903 and 95145, that multiplied together give a triangular number (181060935 = T₁₉₀₂₉).

The spelling of 190395145 in words is "one hundred ninety million, three hundred ninety-five thousand, one hundred forty-five".