1181676541 has 2 divisors, whose sum is σ = 1181676542. Its totient is φ = 1181676540.

The previous prime is 1181676523. The next prime is 1181676553. The reversal of 1181676541 is 1456761811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 604668100 + 577008441 = 24590^2 + 24021^2 .

It is a cyclic number.

It is not a de Polignac number, because 1181676541 - 2⁷ = 1181676413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1181676494 and 1181676503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1181676241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590838270 + 590838271.

It is an arithmetic number, because the mean of its divisors is an integer number (590838271).

Almost surely, 2^1181676541 is an apocalyptic number.

It is an amenable number.

1181676541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181676541 is an equidigital number, since it uses as much as digits as its factorization.

1181676541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 40.

The square root of 1181676541 is about 34375.5224105758. The cubic root of 1181676541 is about 1057.2220309784. Note that the first 3 decimals are identical.

The spelling of 1181676541 in words is "one billion, one hundred eighty-one million, six hundred seventy-six thousand, five hundred forty-one".