1101532540 has 24 divisors (see below), whose sum is σ = 2314533312. Its totient is φ = 440362560.

The previous prime is 1101532519. The next prime is 1101532541. The reversal of 1101532540 is 452351011.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101532541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22702 + ... + 52138.

It is an arithmetic number, because the mean of its divisors is an integer number (96438888).

Almost surely, 2^1101532540 is an apocalyptic number.

1101532540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101532540 is an abundant number, since it is smaller than the sum of its proper divisors (1213000772).

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

1101532540 is a wasteful number, since it uses less digits than its factorization.

1101532540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31317 (or 31315 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1101532540 is about 33189.3437717590. The cubic root of 1101532540 is about 1032.7592901355.

Adding to 1101532540 its reverse (452351011), we get a palindrome (1553883551).

The spelling of 1101532540 in words is "one billion, one hundred one million, five hundred thirty-two thousand, five hundred forty".