116087381 has 2 divisors, whose sum is σ = 116087382. Its totient is φ = 116087380.

The previous prime is 116087311. The next prime is 116087393. The reversal of 116087381 is 183780611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115906756 + 180625 = 10766^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 116087381 - 2¹⁰ = 116086357 is a prime.

It is a super-2 number, since 2×116087381² = 26952560054878322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116087311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58043690 + 58043691.

It is an arithmetic number, because the mean of its divisors is an integer number (58043691).

Almost surely, 2^116087381 is an apocalyptic number.

It is an amenable number.

116087381 is a deficient number, since it is larger than the sum of its proper divisors (1).

116087381 is an equidigital number, since it uses as much as digits as its factorization.

116087381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 116087381 is about 10774.3854117068. The cubic root of 116087381 is about 487.8223242927.

The spelling of 116087381 in words is "one hundred sixteen million, eighty-seven thousand, three hundred eighty-one".