117125381 has 2 divisors, whose sum is σ = 117125382. Its totient is φ = 117125380.

The previous prime is 117125377. The next prime is 117125401. The reversal of 117125381 is 183521711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102616900 + 14508481 = 10130^2 + 3809^2 .

It is an emirp because it is prime and its reverse (183521711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117125381 - 2² = 117125377 is a prime.

It is a super-2 number, since 2×117125381² = 27436709748790322, 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 (117125681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58562690 + 58562691.

It is an arithmetic number, because the mean of its divisors is an integer number (58562691).

Almost surely, 2^117125381 is an apocalyptic number.

It is an amenable number.

117125381 is a deficient number, since it is larger than the sum of its proper divisors (1).

117125381 is an equidigital number, since it uses as much as digits as its factorization.

117125381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 29.

The square root of 117125381 is about 10822.4480132732. The cubic root of 117125381 is about 489.2719731388.

The spelling of 117125381 in words is "one hundred seventeen million, one hundred twenty-five thousand, three hundred eighty-one".