116642969 has 2 divisors, whose sum is σ = 116642970. Its totient is φ = 116642968.

The previous prime is 116642951. The next prime is 116643013. The reversal of 116642969 is 969246611.

It is an a-pointer prime, because the next prime (116643013) can be obtained adding 116642969 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111408025 + 5234944 = 10555^2 + 2288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116642969 is a prime.

It is a super-2 number, since 2×116642969² = 27211164434269922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (116642069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58321484 + 58321485.

It is an arithmetic number, because the mean of its divisors is an integer number (58321485).

Almost surely, 2^116642969 is an apocalyptic number.

It is an amenable number.

116642969 is a deficient number, since it is larger than the sum of its proper divisors (1).

116642969 is an equidigital number, since it uses as much as digits as its factorization.

116642969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 116642969 is about 10800.1374528290. The cubic root of 116642969 is about 488.5993165825.

The spelling of 116642969 in words is "one hundred sixteen million, six hundred forty-two thousand, nine hundred sixty-nine".