1153552331 has 8 divisors (see below), whose sum is σ = 1160607744. Its totient is φ = 1146507880.

The previous prime is 1153552321. The next prime is 1153552369. The reversal of 1153552331 is 1332553511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1153552331 - 2²² = 1149358027 is a prime.

It is a super-2 number, since 2×1153552331² = 2661365960711067122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1153552294 and 1153552303.

It is not an unprimeable number, because it can be changed into a prime (1153552321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316586 + ... + 320208.

It is an arithmetic number, because the mean of its divisors is an integer number (145075968).

Almost surely, 2^1153552331 is an apocalyptic number.

1153552331 is a deficient number, since it is larger than the sum of its proper divisors (7055413).

1153552331 is a wasteful number, since it uses less digits than its factorization.

1153552331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481.

The product of its digits is 6750, while the sum is 29.

The square root of 1153552331 is about 33963.9857937787. The cubic root of 1153552331 is about 1048.7672095513.

The spelling of 1153552331 in words is "one billion, one hundred fifty-three million, five hundred fifty-two thousand, three hundred thirty-one".