1101130545 has 32 divisors (see below), whose sum is σ = 1915878528. Its totient is φ = 537781248.

The previous prime is 1101130529. The next prime is 1101130549. The reversal of 1101130545 is 5450311011.

It is a happy number.

It is not a de Polignac number, because 1101130545 - 2⁴ = 1101130529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101130549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48919 + ... + 67788.

It is an arithmetic number, because the mean of its divisors is an integer number (59871204).

Almost surely, 2^1101130545 is an apocalyptic number.

1101130545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1101130545 is a deficient number, since it is larger than the sum of its proper divisors (814747983).

1101130545 is a wasteful number, since it uses less digits than its factorization.

1101130545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116769.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1101130545 is about 33183.2871337365. The cubic root of 1101130545 is about 1032.6336425885.

Adding to 1101130545 its reverse (5450311011), we get a palindrome (6551441556).

The spelling of 1101130545 in words is "one billion, one hundred one million, one hundred thirty thousand, five hundred forty-five".