1161674249 has 2 divisors, whose sum is σ = 1161674250. Its totient is φ = 1161674248.

The previous prime is 1161674203. The next prime is 1161674251. The reversal of 1161674249 is 9424761611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 981255625 + 180418624 = 31325^2 + 13432^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161674249 - 2⁸ = 1161673993 is a prime.

Together with 1161674251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1161670249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580837124 + 580837125.

It is an arithmetic number, because the mean of its divisors is an integer number (580837125).

Almost surely, 2^1161674249 is an apocalyptic number.

It is an amenable number.

1161674249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161674249 is an equidigital number, since it uses as much as digits as its factorization.

1161674249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 1161674249 is about 34083.3426911153. The cubic root of 1161674249 is about 1051.2228380568. Note that the first 3 decimals are identical.

The spelling of 1161674249 in words is "one billion, one hundred sixty-one million, six hundred seventy-four thousand, two hundred forty-nine".