1112102157 has 4 divisors (see below), whose sum is σ = 1482802880. Its totient is φ = 741401436.

The previous prime is 1112102137. The next prime is 1112102183. The reversal of 1112102157 is 7512012111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7512012111 = 3 ⋅2504004037.

It is not a de Polignac number, because 1112102157 - 2¹¹ = 1112100109 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 (1112102137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185350357 + ... + 185350362.

It is an arithmetic number, because the mean of its divisors is an integer number (370700720).

Almost surely, 2^1112102157 is an apocalyptic number.

It is an amenable number.

1112102157 is a deficient number, since it is larger than the sum of its proper divisors (370700723).

1112102157 is an equidigital number, since it uses as much as digits as its factorization.

1112102157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370700722.

The product of its (nonzero) digits is 140, while the sum is 21.

The square root of 1112102157 is about 33348.1957083138. The cubic root of 1112102157 is about 1036.0520181416.

Adding to 1112102157 its reverse (7512012111), we get a palindrome (8624114268).

The spelling of 1112102157 in words is "one billion, one hundred twelve million, one hundred two thousand, one hundred fifty-seven".