1101137855 has 32 divisors (see below), whose sum is σ = 1443536640. Its totient is φ = 803123200.

The previous prime is 1101137839. The next prime is 1101137929. The reversal of 1101137855 is 5587311011.

It is a happy number.

It is not a de Polignac number, because 1101137855 - 2⁴ = 1101137839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402131 + ... + 404859.

It is an arithmetic number, because the mean of its divisors is an integer number (45110520).

Almost surely, 2^1101137855 is an apocalyptic number.

1101137855 is a deficient number, since it is larger than the sum of its proper divisors (342398785).

1101137855 is a wasteful number, since it uses less digits than its factorization.

1101137855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899.

The product of its (nonzero) digits is 4200, while the sum is 32.

The square root of 1101137855 is about 33183.3972793625. The cubic root of 1101137855 is about 1032.6359276749.

Adding to 1101137855 its reverse (5587311011), we get a palindrome (6688448866).

The spelling of 1101137855 in words is "one billion, one hundred one million, one hundred thirty-seven thousand, eight hundred fifty-five".