115971461 has 2 divisors, whose sum is σ = 115971462. Its totient is φ = 115971460.

The previous prime is 115971437. The next prime is 115971463. The reversal of 115971461 is 164179511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115971361 + 100 = 10769^2 + 10^2 .

It is an emirp because it is prime and its reverse (164179511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115971461 - 2⁶ = 115971397 is a prime.

Together with 115971463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115971463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57985730 + 57985731.

It is an arithmetic number, because the mean of its divisors is an integer number (57985731).

Almost surely, 2^115971461 is an apocalyptic number.

It is an amenable number.

115971461 is a deficient number, since it is larger than the sum of its proper divisors (1).

115971461 is an equidigital number, since it uses as much as digits as its factorization.

115971461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 35.

The square root of 115971461 is about 10769.0046429556. The cubic root of 115971461 is about 487.6598972311.

The spelling of 115971461 in words is "one hundred fifteen million, nine hundred seventy-one thousand, four hundred sixty-one".