111252001 has 6 divisors (see below), whose sum is σ = 129415650. Its totient is φ = 95358816.

The previous prime is 111251981. The next prime is 111252041. The reversal of 111252001 is 100252111.

It can be written as a sum of positive squares in only one way, i.e., 110250000 + 1002001 = 10500^2 + 1001^2 .

It is not a de Polignac number, because 111252001 - 2²³ = 102863393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111252041) 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, 1135176 + ... + 1135273.

It is an arithmetic number, because the mean of its divisors is an integer number (21569275).

Almost surely, 2^111252001 is an apocalyptic number.

It is an amenable number.

111252001 is a deficient number, since it is larger than the sum of its proper divisors (18163649).

111252001 is an equidigital number, since it uses as much as digits as its factorization.

111252001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270463 (or 2270456 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 111252001 is about 10547.6064109351. The cubic root of 111252001 is about 480.9529693255.

The spelling of 111252001 in words is "one hundred eleven million, two hundred fifty-two thousand, one".