1148833961 has 4 divisors (see below), whose sum is σ = 1253273424. Its totient is φ = 1044394500.

The previous prime is 1148833921. The next prime is 1148833963. The reversal of 1148833961 is 1693388411.

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.

It is a cyclic number.

It is not a de Polignac number, because 1148833961 - 2⁶ = 1148833897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1148833963) 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, 52219715 + ... + 52219736.

It is an arithmetic number, because the mean of its divisors is an integer number (313318356).

Almost surely, 2^1148833961 is an apocalyptic number.

1148833961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1148833961 is a deficient number, since it is larger than the sum of its proper divisors (104439463).

1148833961 is a wasteful number, since it uses less digits than its factorization.

1148833961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104439462.

The product of its digits is 124416, while the sum is 44.

The square root of 1148833961 is about 33894.4532482824. The cubic root of 1148833961 is about 1047.3353328799.

The spelling of 1148833961 in words is "one billion, one hundred forty-eight million, eight hundred thirty-three thousand, nine hundred sixty-one".