1148115621 has 16 divisors (see below), whose sum is σ = 1622462400. Its totient is φ = 719678208.

The previous prime is 1148115599. The next prime is 1148115623. The reversal of 1148115621 is 1265118411.

It is not a de Polignac number, because 1148115621 - 2⁵ = 1148115589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148115623) 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, 43990 + ... + 65048.

It is an arithmetic number, because the mean of its divisors is an integer number (101403900).

Almost surely, 2^1148115621 is an apocalyptic number.

It is an amenable number.

1148115621 is a deficient number, since it is larger than the sum of its proper divisors (474346779).

1148115621 is a wasteful number, since it uses less digits than its factorization.

1148115621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22148.

The product of its digits is 1920, while the sum is 30.

The square root of 1148115621 is about 33883.8548721954. The cubic root of 1148115621 is about 1047.1169956351.

The spelling of 1148115621 in words is "one billion, one hundred forty-eight million, one hundred fifteen thousand, six hundred twenty-one".