1153531262 has 16 divisors (see below), whose sum is σ = 1880816112. Its totient is φ = 527422080.

The previous prime is 1153531237. The next prime is 1153531271. The reversal of 1153531262 is 2621353511.

It is a super-2 number, since 2×1153531262² = 2661268744822625288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204539 + ... + 210102.

It is an arithmetic number, because the mean of its divisors is an integer number (117551007).

Almost surely, 2^1153531262 is an apocalyptic number.

1153531262 is a deficient number, since it is larger than the sum of its proper divisors (727284850).

1153531262 is a wasteful number, since it uses less digits than its factorization.

1153531262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414763.

The product of its digits is 5400, while the sum is 29.

The square root of 1153531262 is about 33963.6756255856. The cubic root of 1153531262 is about 1048.7608244600.

Adding to 1153531262 its reverse (2621353511), we get a palindrome (3774884773).

The spelling of 1153531262 in words is "one billion, one hundred fifty-three million, five hundred thirty-one thousand, two hundred sixty-two".