1153532465 has 32 divisors (see below), whose sum is σ = 1477681920. Its totient is φ = 862009344.

The previous prime is 1153532459. The next prime is 1153532489. The reversal of 1153532465 is 5642353511.

It is a cyclic number.

It is not a de Polignac number, because 1153532465 - 2⁸ = 1153532209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3422777 + ... + 3423113.

It is an arithmetic number, because the mean of its divisors is an integer number (46177560).

Almost surely, 2^1153532465 is an apocalyptic number.

It is an amenable number.

1153532465 is a deficient number, since it is larger than the sum of its proper divisors (324149455).

1153532465 is a wasteful number, since it uses less digits than its factorization.

1153532465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761.

The product of its digits is 54000, while the sum is 35.

The square root of 1153532465 is about 33963.6933356783. The cubic root of 1153532465 is about 1048.7611890387.

Adding to 1153532465 its reverse (5642353511), we get a palindrome (6795885976).

The spelling of 1153532465 in words is "one billion, one hundred fifty-three million, five hundred thirty-two thousand, four hundred sixty-five".