1151525040 has 80 divisors (see below), whose sum is σ = 3692844000. Its totient is φ = 296482816.

The previous prime is 1151525033. The next prime is 1151525041. The reversal of 1151525040 is 405251511.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1151525040.

It is not an unprimeable number, because it can be changed into a prime (1151525041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75765 + ... + 89684.

It is an arithmetic number, because the mean of its divisors is an integer number (46160550).

Almost surely, 2^1151525040 is an apocalyptic number.

1151525040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151525040 is an abundant number, since it is smaller than the sum of its proper divisors (2541318960).

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

1151525040 is a wasteful number, since it uses less digits than its factorization.

1151525040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165494 (or 165488 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1151525040 is about 33934.1279540229. The cubic root of 1151525040 is about 1048.1524699014.

Adding to 1151525040 its reverse (405251511), we get a palindrome (1556776551).

The spelling of 1151525040 in words is "one billion, one hundred fifty-one million, five hundred twenty-five thousand, forty".