1160921947 has 2 divisors, whose sum is σ = 1160921948. Its totient is φ = 1160921946.

The previous prime is 1160921921. The next prime is 1160921981. The reversal of 1160921947 is 7491290611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1160921947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1160921917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580460973 + 580460974.

It is an arithmetic number, because the mean of its divisors is an integer number (580460974).

Almost surely, 2^1160921947 is an apocalyptic number.

1160921947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1160921947 is an equidigital number, since it uses as much as digits as its factorization.

1160921947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1160921947 is about 34072.3046916407. The cubic root of 1160921947 is about 1050.9958645538.

The spelling of 1160921947 in words is "one billion, one hundred sixty million, nine hundred twenty-one thousand, nine hundred forty-seven".