1105421136 has 40 divisors (see below), whose sum is σ = 2860275264. Its totient is φ = 367879680.

The previous prime is 1105421117. The next prime is 1105421137. The reversal of 1105421136 is 6311245011.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105421137) 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, 12040 + ... + 48536.

Almost surely, 2^1105421136 is an apocalyptic number.

1105421136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1105421136 is an abundant number, since it is smaller than the sum of its proper divisors (1754854128).

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

1105421136 is a wasteful number, since it uses less digits than its factorization.

1105421136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37139 (or 37133 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1105421136 is about 33247.8741576059. The cubic root of 1105421136 is about 1033.9731344977.

Adding to 1105421136 its reverse (6311245011), we get a palindrome (7416666147).

The spelling of 1105421136 in words is "one billion, one hundred five million, four hundred twenty-one thousand, one hundred thirty-six".