1124142157 has 2 divisors, whose sum is σ = 1124142158. Its totient is φ = 1124142156.

The previous prime is 1124142133. The next prime is 1124142191. The reversal of 1124142157 is 7512414211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1098193321 + 25948836 = 33139^2 + 5094^2 .

It is an emirp because it is prime and its reverse (7512414211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1124142157 is a prime.

It is a super-2 number, since 2×1124142157² = 2527391178289225298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124142127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562071078 + 562071079.

It is an arithmetic number, because the mean of its divisors is an integer number (562071079).

Almost surely, 2^1124142157 is an apocalyptic number.

It is an amenable number.

1124142157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124142157 is an equidigital number, since it uses as much as digits as its factorization.

1124142157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 28.

The square root of 1124142157 is about 33528.2292553603. The cubic root of 1124142157 is about 1039.7774909205. Note that the first 3 decimals are identical.

Adding to 1124142157 its reverse (7512414211), we get a palindrome (8636556368).

The spelling of 1124142157 in words is "one billion, one hundred twenty-four million, one hundred forty-two thousand, one hundred fifty-seven".