1109900156 has 24 divisors (see below), whose sum is σ = 1954525440. Its totient is φ = 551474352.

The previous prime is 1109900149. The next prime is 1109900171. The reversal of 1109900156 is 6510099011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779261 + ... + 780683.

It is an arithmetic number, because the mean of its divisors is an integer number (81438560).

Almost surely, 2^1109900156 is an apocalyptic number.

It is an amenable number.

1109900156 is a deficient number, since it is larger than the sum of its proper divisors (844625284).

1109900156 is a wasteful number, since it uses less digits than its factorization.

1109900156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513 (or 2511 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 32.

The square root of 1109900156 is about 33315.1640548264. The cubic root of 1109900156 is about 1035.3677599655.

Adding to 1109900156 its reverse (6510099011), we get a palindrome (7619999167).

The spelling of 1109900156 in words is "one billion, one hundred nine million, nine hundred thousand, one hundred fifty-six".