116521372 has 12 divisors (see below), whose sum is σ = 222449976. Its totient is φ = 52964240.

The previous prime is 116521369. The next prime is 116521373. The reversal of 116521372 is 273125611.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 116521372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116521373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324063 + ... + 1324150.

It is an arithmetic number, because the mean of its divisors is an integer number (18537498).

Almost surely, 2^116521372 is an apocalyptic number.

It is an amenable number.

116521372 is a deficient number, since it is larger than the sum of its proper divisors (105928604).

116521372 is a wasteful number, since it uses less digits than its factorization.

116521372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648228 (or 2648226 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 116521372 is about 10794.5065658417. The cubic root of 116521372 is about 488.4294738886.

Adding to 116521372 its reverse (273125611), we get a palindrome (389646983).

The spelling of 116521372 in words is "one hundred sixteen million, five hundred twenty-one thousand, three hundred seventy-two".