1171941139 has 2 divisors, whose sum is σ = 1171941140. Its totient is φ = 1171941138.

The previous prime is 1171941119. The next prime is 1171941167. The reversal of 1171941139 is 9311491711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1171941139 - 2¹³ = 1171932947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1171941098 and 1171941107.

It is not a weakly prime, because it can be changed into another prime (1171941119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585970569 + 585970570.

It is an arithmetic number, because the mean of its divisors is an integer number (585970570).

Almost surely, 2^1171941139 is an apocalyptic number.

1171941139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171941139 is an equidigital number, since it uses as much as digits as its factorization.

1171941139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 37.

The square root of 1171941139 is about 34233.6258523692. The cubic root of 1171941139 is about 1054.3106654916.

The spelling of 1171941139 in words is "one billion, one hundred seventy-one million, nine hundred forty-one thousand, one hundred thirty-nine".