1187738049 has 8 divisors (see below), whose sum is σ = 1584439360. Its totient is φ = 791431056.

The previous prime is 1187738023. The next prime is 1187738059. The reversal of 1187738049 is 9408377811.

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

It is not a de Polignac number, because 1187738049 - 2¹⁷ = 1187606977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1187737989 and 1187738007.

It is not an unprimeable number, because it can be changed into a prime (1187738059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91477 + ... + 103650.

It is an arithmetic number, because the mean of its divisors is an integer number (198054920).

Almost surely, 2^1187738049 is an apocalyptic number.

It is an amenable number.

1187738049 is a deficient number, since it is larger than the sum of its proper divisors (396701311).

1187738049 is a wasteful number, since it uses less digits than its factorization.

1187738049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197159.

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 1187738049 is about 34463.5756850620. The cubic root of 1187738049 is about 1059.0266515864.

The spelling of 1187738049 in words is "one billion, one hundred eighty-seven million, seven hundred thirty-eight thousand, forty-nine".