1161671507 has 2 divisors, whose sum is σ = 1161671508. Its totient is φ = 1161671506.

The previous prime is 1161671479. The next prime is 1161671519. The reversal of 1161671507 is 7051761611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1161671507 - 2⁶ = 1161671443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161671107) 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 as a sum of consecutive naturals, namely, 580835753 + 580835754.

It is an arithmetic number, because the mean of its divisors is an integer number (580835754).

Almost surely, 2^1161671507 is an apocalyptic number.

1161671507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161671507 is an equidigital number, since it uses as much as digits as its factorization.

1161671507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 1161671507 is about 34083.3024661637. The cubic root of 1161671507 is about 1051.2220109588. Note that the first 3 decimals are identical.

The spelling of 1161671507 in words is "one billion, one hundred sixty-one million, six hundred seventy-one thousand, five hundred seven".