1148838757 has 16 divisors (see below), whose sum is σ = 1261578240. Its totient is φ = 1037512000.

The previous prime is 1148838739. The next prime is 1148838787. The reversal of 1148838757 is 7578388411.

It is a cyclic number.

It is not a de Polignac number, because 1148838757 - 2¹⁵ = 1148805989 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 (1148838787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1638507 + ... + 1639207.

It is an arithmetic number, because the mean of its divisors is an integer number (78848640).

Almost surely, 2^1148838757 is an apocalyptic number.

It is an amenable number.

1148838757 is a deficient number, since it is larger than the sum of its proper divisors (112739483).

1148838757 is a wasteful number, since it uses less digits than its factorization.

1148838757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484.

The product of its digits is 1505280, while the sum is 52.

The square root of 1148838757 is about 33894.5239972477. The cubic root of 1148838757 is about 1047.3367903035.

The spelling of 1148838757 in words is "one billion, one hundred forty-eight million, eight hundred thirty-eight thousand, seven hundred fifty-seven".