1138251148 has 6 divisors (see below), whose sum is σ = 1991939516. Its totient is φ = 569125572.

The previous prime is 1138251067. The next prime is 1138251157. The reversal of 1138251148 is 8411528311.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142281390 + ... + 142281397.

Almost surely, 2^1138251148 is an apocalyptic number.

It is an amenable number.

1138251148 is a deficient number, since it is larger than the sum of its proper divisors (853688368).

1138251148 is a wasteful number, since it uses less digits than its factorization.

1138251148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284562791 (or 284562789 counting only the distinct ones).

The product of its digits is 7680, while the sum is 34.

The square root of 1138251148 is about 33737.9778291468. The cubic root of 1138251148 is about 1044.1094640633.

Adding to 1138251148 its reverse (8411528311), we get a palindrome (9549779459).

The spelling of 1138251148 in words is "one billion, one hundred thirty-eight million, two hundred fifty-one thousand, one hundred forty-eight".