1151103405 has 16 divisors (see below), whose sum is σ = 1950105024. Its totient is φ = 577808640.

The previous prime is 1151103403. The next prime is 1151103427. The reversal of 1151103405 is 5043011511.

It is a happy number.

It is not a de Polignac number, because 1151103405 - 2¹ = 1151103403 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151103403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256811 + ... + 2257320.

It is an arithmetic number, because the mean of its divisors is an integer number (121881564).

Almost surely, 2^1151103405 is an apocalyptic number.

1151103405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151103405 is a deficient number, since it is larger than the sum of its proper divisors (799001619).

1151103405 is a wasteful number, since it uses less digits than its factorization.

1151103405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514156.

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

The square root of 1151103405 is about 33927.9148342482. The cubic root of 1151103405 is about 1048.0245260295.

Adding to 1151103405 its reverse (5043011511), we get a palindrome (6194114916).

The spelling of 1151103405 in words is "one billion, one hundred fifty-one million, one hundred three thousand, four hundred five".