1151551952 has 40 divisors (see below), whose sum is σ = 2315644200. Its totient is φ = 554097152.

The previous prime is 1151551937. The next prime is 1151551969. The reversal of 1151551952 is 2591551511.

It can be written as a sum of positive squares in 4 ways, for example, as 6677056 + 1144874896 = 2584^2 + 33836^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143174 + ... + 151002.

It is an arithmetic number, because the mean of its divisors is an integer number (57891105).

Almost surely, 2^1151551952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151551952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157822100).

1151551952 is an abundant number, since it is smaller than the sum of its proper divisors (1164092248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151551952 is a wasteful number, since it uses less digits than its factorization.

1151551952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8183 (or 8177 counting only the distinct ones).

The product of its digits is 11250, while the sum is 35.

The square root of 1151551952 is about 33934.5244846602. The cubic root of 1151551952 is about 1048.1606352064.

The spelling of 1151551952 in words is "one billion, one hundred fifty-one million, five hundred fifty-one thousand, nine hundred fifty-two".