1151531032 has 32 divisors (see below), whose sum is σ = 2183469120. Its totient is φ = 569306880.

The previous prime is 1151531027. The next prime is 1151531033. The reversal of 1151531032 is 2301351511.

It is a junction number, because it is equal to n+sod(n) for n = 1151530994 and 1151531012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151531033) 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, 295078 + ... + 298954.

It is an arithmetic number, because the mean of its divisors is an integer number (68233410).

Almost surely, 2^1151531032 is an apocalyptic number.

It is an amenable number.

1151531032 is a deficient number, since it is larger than the sum of its proper divisors (1031938088).

1151531032 is a wasteful number, since it uses less digits than its factorization.

1151531032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291 (or 4287 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1151531032 is about 33934.2162426068. The cubic root of 1151531032 is about 1048.1542879306.

Adding to 1151531032 its reverse (2301351511), we get a palindrome (3452882543).

The spelling of 1151531032 in words is "one billion, one hundred fifty-one million, five hundred thirty-one thousand, thirty-two".