111640413 has 8 divisors (see below), whose sum is σ = 155325888. Its totient is φ = 71190944.

The previous prime is 111640379. The next prime is 111640423. The reversal of 111640413 is 314046111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111640413 - 2¹⁰ = 111639389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111640413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111640423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808920 + ... + 809057.

It is an arithmetic number, because the mean of its divisors is an integer number (19415736).

Almost surely, 2^111640413 is an apocalyptic number.

It is an amenable number.

111640413 is a deficient number, since it is larger than the sum of its proper divisors (43685475).

111640413 is a wasteful number, since it uses less digits than its factorization.

111640413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618003.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 111640413 is about 10566.0026973307. The cubic root of 111640413 is about 481.5120332048.

Adding to 111640413 its reverse (314046111), we get a palindrome (425686524).

The spelling of 111640413 in words is "one hundred eleven million, six hundred forty thousand, four hundred thirteen".