1151571344 has 120 divisors (see below), whose sum is σ = 2875092768. Its totient is φ = 441745920.

The previous prime is 1151571341. The next prime is 1151571367. The reversal of 1151571344 is 4431751511.

It is a super-2 number, since 2×1151571344² = 2652233120643932672, 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 1151571344.

It is not an unprimeable number, because it can be changed into a prime (1151571341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 576812 + ... + 578804.

Almost surely, 2^1151571344 is an apocalyptic number.

1151571344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151571344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1437546384).

1151571344 is an abundant number, since it is smaller than the sum of its proper divisors (1723521424).

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

1151571344 is a wasteful number, since it uses less digits than its factorization.

1151571344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093 (or 2080 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 1151571344 is about 33934.8102101662. The cubic root of 1151571344 is about 1048.1665188075.

The spelling of 1151571344 in words is "one billion, one hundred fifty-one million, five hundred seventy-one thousand, three hundred forty-four".