1189875047 has 2 divisors, whose sum is σ = 1189875048. Its totient is φ = 1189875046.

The previous prime is 1189874993. The next prime is 1189875053. The reversal of 1189875047 is 7405789811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1189875047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1189874986 and 1189875004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1189875347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594937523 + 594937524.

It is an arithmetic number, because the mean of its divisors is an integer number (594937524).

Almost surely, 2^1189875047 is an apocalyptic number.

1189875047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189875047 is an equidigital number, since it uses as much as digits as its factorization.

1189875047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 50.

The square root of 1189875047 is about 34494.5654705201. The cubic root of 1189875047 is about 1059.6614104885.

The spelling of 1189875047 in words is "one billion, one hundred eighty-nine million, eight hundred seventy-five thousand, forty-seven".