190501965 has 24 divisors (see below), whose sum is σ = 331638840. Its totient is φ = 101159424.

The previous prime is 190501921. The next prime is 190501979. The reversal of 190501965 is 569105091.

190501965 is a `hidden beast` number, since 1 + 90 + 501 + 9 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 227529 + 190274436 = 477^2 + 13794^2 .

It is not a de Polignac number, because 190501965 - 2¹⁰ = 190500941 is a prime.

It is a super-2 number, since 2×190501965² = 72581997337722450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1401 + ... + 19569.

It is an arithmetic number, because the mean of its divisors is an integer number (13818285).

Almost surely, 2^190501965 is an apocalyptic number.

190501965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190501965 is a deficient number, since it is larger than the sum of its proper divisors (141136875).

190501965 is a wasteful number, since it uses less digits than its factorization.

190501965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18413 (or 18410 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 190501965 is about 13802.2449260981. The cubic root of 190501965 is about 575.3955337791.

The spelling of 190501965 in words is "one hundred ninety million, five hundred one thousand, nine hundred sixty-five".