111402453 has 32 divisors (see below), whose sum is σ = 162610560. Its totient is φ = 67599360.

The previous prime is 111402413. The next prime is 111402461. The reversal of 111402453 is 354204111.

It is not a de Polignac number, because 111402453 - 2⁸ = 111402197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111402413) 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 31 ways as a sum of consecutive naturals, for example, 170275 + ... + 170927.

It is an arithmetic number, because the mean of its divisors is an integer number (5081580).

Almost surely, 2^111402453 is an apocalyptic number.

It is an amenable number.

111402453 is a deficient number, since it is larger than the sum of its proper divisors (51208107).

111402453 is a wasteful number, since it uses less digits than its factorization.

111402453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 111402453 is about 10554.7360459653. The cubic root of 111402453 is about 481.1696777624.

Adding to 111402453 its reverse (354204111), we get a palindrome (465606564).

The spelling of 111402453 in words is "one hundred eleven million, four hundred two thousand, four hundred fifty-three".