1151522531 has 8 divisors (see below), whose sum is σ = 1264830720. Its totient is φ = 1043484552.

The previous prime is 1151522521. The next prime is 1151522563. The reversal of 1151522531 is 1352251511.

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 1151522531 - 2¹⁰ = 1151521507 is a prime.

It is a super-2 number, since 2×1151522531² = 2652008278801291922, 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 1151522531.

It is not an unprimeable number, because it can be changed into a prime (1151522521) 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, 1317095 + ... + 1317968.

It is an arithmetic number, because the mean of its divisors is an integer number (158103840).

Almost surely, 2^1151522531 is an apocalyptic number.

1151522531 is a deficient number, since it is larger than the sum of its proper divisors (113308189).

1151522531 is a wasteful number, since it uses less digits than its factorization.

1151522531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635105.

The product of its digits is 1500, while the sum is 26.

The square root of 1151522531 is about 33934.0909853204. The cubic root of 1151522531 is about 1048.1517086452.

The spelling of 1151522531 in words is "one billion, one hundred fifty-one million, five hundred twenty-two thousand, five hundred thirty-one".