111640356 has 45 divisors (see below), whose sum is σ = 292347979. Its totient is φ = 37150056.

The previous prime is 111640337. The next prime is 111640363. The reversal of 111640356 is 653046111.

The square root of 111640356 is 10566.

It is a perfect power (a square), and thus also a powerful number.

111640356 is a `hidden beast` number, since 1 + 11 + 640 + 3 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 189895 + ... + 190481.

Almost surely, 2^111640356 is an apocalyptic number.

111640356 is the 10566-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111640356

111640356 is an abundant number, since it is smaller than the sum of its proper divisors (180707623).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111640356 is an frugal number, since it uses more digits than its factorization.

111640356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The cubic root of 111640356 is about 481.5119512566.

Adding to 111640356 its reverse (653046111), we get a palindrome (764686467).

The spelling of 111640356 in words is "one hundred eleven million, six hundred forty thousand, three hundred fifty-six".