1148522389 has 32 divisors (see below), whose sum is σ = 1371560960. Its totient is φ = 941455872.

The previous prime is 1148522371. The next prime is 1148522407. The reversal of 1148522389 is 9832258411.

It is an interprime number because it is at equal distance from previous prime (1148522371) and next prime (1148522407).

It is not a de Polignac number, because 1148522389 - 2²⁵ = 1114967957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148522189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4058242 + ... + 4058524.

It is an arithmetic number, because the mean of its divisors is an integer number (42861280).

Almost surely, 2^1148522389 is an apocalyptic number.

It is an amenable number.

1148522389 is a deficient number, since it is larger than the sum of its proper divisors (223038571).

1148522389 is a wasteful number, since it uses less digits than its factorization.

1148522389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its digits is 138240, while the sum is 43.

The square root of 1148522389 is about 33889.8567273454. The cubic root of 1148522389 is about 1047.2406427041.

The spelling of 1148522389 in words is "one billion, one hundred forty-eight million, five hundred twenty-two thousand, three hundred eighty-nine".