190100709 has 32 divisors (see below), whose sum is σ = 291536000. Its totient is φ = 122421456.

The previous prime is 190100693. The next prime is 190100717. The reversal of 190100709 is 907001091.

It is not a de Polignac number, because 190100709 - 2⁴ = 190100693 is a prime.

It is a super-2 number, since 2×190100709² = 72276559124605362, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190100509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1367562 + ... + 1367700.

It is an arithmetic number, because the mean of its divisors is an integer number (9110500).

Almost surely, 2^190100709 is an apocalyptic number.

It is an amenable number.

190100709 is a deficient number, since it is larger than the sum of its proper divisors (101435291).

190100709 is an frugal number, since it uses more digits than its factorization.

190100709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 27.

The square root of 190100709 is about 13787.7013675232. The cubic root of 190100709 is about 574.9912628792.

The spelling of 190100709 in words is "one hundred ninety million, one hundred thousand, seven hundred nine".