190280129 has 4 divisors (see below), whose sum is σ = 204917076. Its totient is φ = 175643184.

The previous prime is 190280113. The next prime is 190280143. The reversal of 190280129 is 921082091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42706225 + 147573904 = 6535^2 + 12148^2 .

It is a cyclic number.

It is not a de Polignac number, because 190280129 - 2⁴ = 190280113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 190280095 and 190280104.

It is not an unprimeable number, because it can be changed into a prime (190280029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7318454 + ... + 7318479.

It is an arithmetic number, because the mean of its divisors is an integer number (51229269).

Almost surely, 2^190280129 is an apocalyptic number.

It is an amenable number.

190280129 is a deficient number, since it is larger than the sum of its proper divisors (14636947).

190280129 is a wasteful number, since it uses less digits than its factorization.

190280129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14636946.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 190280129 is about 13794.2063562932. The cubic root of 190280129 is about 575.1721012249.

The spelling of 190280129 in words is "one hundred ninety million, two hundred eighty thousand, one hundred twenty-nine".