111007157 has 4 divisors (see below), whose sum is σ = 114835020. Its totient is φ = 107179296.

The previous prime is 111007147. The next prime is 111007189. The reversal of 111007157 is 751700111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68574961 + 42432196 = 8281^2 + 6514^2 .

It is a cyclic number.

It is not a de Polignac number, because 111007157 - 2²⁶ = 43898293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111007147) 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, 1913888 + ... + 1913945.

It is an arithmetic number, because the mean of its divisors is an integer number (28708755).

Almost surely, 2^111007157 is an apocalyptic number.

It is an amenable number.

111007157 is a deficient number, since it is larger than the sum of its proper divisors (3827863).

111007157 is an equidigital number, since it uses as much as digits as its factorization.

111007157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827862.

The product of its (nonzero) digits is 245, while the sum is 23.

The square root of 111007157 is about 10535.9934035667. The cubic root of 111007157 is about 480.5998822159.

Adding to 111007157 its reverse (751700111), we get a palindrome (862707268).

The spelling of 111007157 in words is "one hundred eleven million, seven thousand, one hundred fifty-seven".