1153230988 has 36 divisors (see below), whose sum is σ = 2497540080. Its totient is φ = 456221376.

The previous prime is 1153230979. The next prime is 1153230997. The reversal of 1153230988 is 8890323511.

It is an interprime number because it is at equal distance from previous prime (1153230979) and next prime (1153230997).

It is a super-2 number, since 2×1153230988² = 2659883423366912288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1153230988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117123 + ... + 126586.

Almost surely, 2^1153230988 is an apocalyptic number.

It is an amenable number.

1153230988 is an abundant number, since it is smaller than the sum of its proper divisors (1344309092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1153230988 is a wasteful number, since it uses less digits than its factorization.

1153230988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243746 (or 243731 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1153230988 is about 33959.2548210352. The cubic root of 1153230988 is about 1048.6698161081.

The spelling of 1153230988 in words is "one billion, one hundred fifty-three million, two hundred thirty thousand, nine hundred eighty-eight".