1928995135 has 4 divisors (see below), whose sum is σ = 2314794168. Its totient is φ = 1543196104.

The previous prime is 1928995099. The next prime is 1928995171. The reversal of 1928995135 is 5315998291.

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

It is an interprime number because it is at equal distance from previous prime (1928995099) and next prime (1928995171).

It is a cyclic number.

It is not a de Polignac number, because 1928995135 - 2²⁷ = 1794777407 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 192899509 + ... + 192899518.

It is an arithmetic number, because the mean of its divisors is an integer number (578698542).

Almost surely, 2^1928995135 is an apocalyptic number.

1928995135 is a deficient number, since it is larger than the sum of its proper divisors (385799033).

1928995135 is an equidigital number, since it uses as much as digits as its factorization.

1928995135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385799032.

The product of its digits is 874800, while the sum is 52.

The square root of 1928995135 is about 43920.3271276524. The cubic root of 1928995135 is about 1244.8309496655.

The spelling of 1928995135 in words is "one billion, nine hundred twenty-eight million, nine hundred ninety-five thousand, one hundred thirty-five".