1295199189 has 24 divisors (see below), whose sum is σ = 1997798400. Its totient is φ = 806793120.

The previous prime is 1295199187. The next prime is 1295199203. The reversal of 1295199189 is 9819915921.

It is not a de Polignac number, because 1295199189 - 2¹ = 1295199187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295199187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71949 + ... + 88130.

It is an arithmetic number, because the mean of its divisors is an integer number (83241600).

Almost surely, 2^1295199189 is an apocalyptic number.

It is an amenable number.

1295199189 is a deficient number, since it is larger than the sum of its proper divisors (702599211).

1295199189 is a wasteful number, since it uses less digits than its factorization.

1295199189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160145 (or 160142 counting only the distinct ones).

The product of its digits is 524880, while the sum is 54.

The square root of 1295199189 is about 35988.8759063131. The cubic root of 1295199189 is about 1090.0477461340.

The spelling of 1295199189 in words is "one billion, two hundred ninety-five million, one hundred ninety-nine thousand, one hundred eighty-nine".