116613381 has 16 divisors (see below), whose sum is σ = 166633344. Its totient is φ = 72350784.

The previous prime is 116613361. The next prime is 116613391. The reversal of 116613381 is 183316611.

It is not a de Polignac number, because 116613381 - 2⁵ = 116613349 is a prime.

It is a super-2 number, since 2×116613381² = 27197361256502322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116613361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20286 + ... + 25391.

It is an arithmetic number, because the mean of its divisors is an integer number (10414584).

Almost surely, 2^116613381 is an apocalyptic number.

It is an amenable number.

116613381 is a deficient number, since it is larger than the sum of its proper divisors (50019963).

116613381 is a wasteful number, since it uses less digits than its factorization.

116613381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45740.

The product of its digits is 2592, while the sum is 30.

The square root of 116613381 is about 10798.7675685700. The cubic root of 116613381 is about 488.5579999069.

Adding to 116613381 its reverse (183316611), we get a palindrome (299929992).

It can be divided in two parts, 11661 and 3381, that multiplied together give a square (39425841 = 6279²).

The spelling of 116613381 in words is "one hundred sixteen million, six hundred thirteen thousand, three hundred eighty-one".