111628701 has 6 divisors (see below), whose sum is σ = 161241470. Its totient is φ = 74419128.

The previous prime is 111628687. The next prime is 111628709. The reversal of 111628701 is 107826111.

It can be written as a sum of positive squares in only one way, i.e., 82791801 + 28836900 = 9099^2 + 5370^2 .

It is not a de Polignac number, because 111628701 - 2⁹ = 111628189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111628709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6201586 + ... + 6201603.

Almost surely, 2^111628701 is an apocalyptic number.

It is an amenable number.

111628701 is a deficient number, since it is larger than the sum of its proper divisors (49612769).

111628701 is a wasteful number, since it uses less digits than its factorization.

111628701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12403195 (or 12403192 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The square root of 111628701 is about 10565.4484523848. The cubic root of 111628701 is about 481.4951944216.

The spelling of 111628701 in words is "one hundred eleven million, six hundred twenty-eight thousand, seven hundred one".