1157111425 has 24 divisors (see below), whose sum is σ = 1489047552. Its totient is φ = 891024000.

The previous prime is 1157111413. The next prime is 1157111441. The reversal of 1157111425 is 5241117511.

It is a de Polignac number, because none of the positive numbers 2^k-1157111425 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1157111393 and 1157111402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144117 + ... + 151933.

It is an arithmetic number, because the mean of its divisors is an integer number (62043648).

Almost surely, 2^1157111425 is an apocalyptic number.

It is an amenable number.

1157111425 is a deficient number, since it is larger than the sum of its proper divisors (331936127).

1157111425 is a wasteful number, since it uses less digits than its factorization.

1157111425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8049 (or 8044 counting only the distinct ones).

The product of its digits is 1400, while the sum is 28.

The square root of 1157111425 is about 34016.3405586198. The cubic root of 1157111425 is about 1049.8447011437.

Adding to 1157111425 its reverse (5241117511), we get a palindrome (6398228936).

The spelling of 1157111425 in words is "one billion, one hundred fifty-seven million, one hundred eleven thousand, four hundred twenty-five".