190100285 has 8 divisors (see below), whose sum is σ = 228317496. Its totient is φ = 151948800.

The previous prime is 190100279. The next prime is 190100293. The reversal of 190100285 is 582001091.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 597529 + 189502756 = 773^2 + 13766^2 .

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

It is not a de Polignac number, because 190100285 - 2⁴ = 190100269 is a prime.

It is a super-2 number, since 2×190100285² = 72276236714162450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9824 + ... + 21833.

It is an arithmetic number, because the mean of its divisors is an integer number (28539687).

Almost surely, 2^190100285 is an apocalyptic number.

It is an amenable number.

190100285 is a deficient number, since it is larger than the sum of its proper divisors (38217211).

190100285 is a wasteful number, since it uses less digits than its factorization.

190100285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32863.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 190100285 is about 13787.6859914926. The cubic root of 190100285 is about 574.9908353927.

The spelling of 190100285 in words is "one hundred ninety million, one hundred thousand, two hundred eighty-five".