1255119189 has 8 divisors (see below), whose sum is σ = 1673676960. Its totient is φ = 836653776.

The previous prime is 1255119167. The next prime is 1255119191. The reversal of 1255119189 is 9819115521.

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

It is not a de Polignac number, because 1255119189 - 2⁹ = 1255118677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255119189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255119889) 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 7 ways as a sum of consecutive naturals, for example, 20239 + ... + 54035.

It is an arithmetic number, because the mean of its divisors is an integer number (209209620).

Almost surely, 2^1255119189 is an apocalyptic number.

It is an amenable number.

1255119189 is a deficient number, since it is larger than the sum of its proper divisors (418557771).

1255119189 is a wasteful number, since it uses less digits than its factorization.

1255119189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46179.

The product of its digits is 32400, while the sum is 42.

The square root of 1255119189 is about 35427.6613538066. The cubic root of 1255119189 is about 1078.6858699105.

The spelling of 1255119189 in words is "one billion, two hundred fifty-five million, one hundred nineteen thousand, one hundred eighty-nine".