1189497195 has 24 divisors (see below), whose sum is σ = 2065284000. Its totient is φ = 633325056.

The previous prime is 1189497181. The next prime is 1189497203. The reversal of 1189497195 is 5917949811.

It is not a de Polignac number, because 1189497195 - 2¹¹ = 1189495147 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4891 + ... + 49019.

It is an arithmetic number, because the mean of its divisors is an integer number (86053500).

Almost surely, 2^1189497195 is an apocalyptic number.

1189497195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1189497195 is a deficient number, since it is larger than the sum of its proper divisors (875786805).

1189497195 is a wasteful number, since it uses less digits than its factorization.

1189497195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44739 (or 44736 counting only the distinct ones).

The product of its digits is 816480, while the sum is 54.

The square root of 1189497195 is about 34489.0880569493. The cubic root of 1189497195 is about 1059.5492313219.

The spelling of 1189497195 in words is "one billion, one hundred eighty-nine million, four hundred ninety-seven thousand, one hundred ninety-five".