1121364156 has 24 divisors (see below), whose sum is σ = 2854381824. Its totient is φ = 339807280.

The previous prime is 1121364137. The next prime is 1121364221. The reversal of 1121364156 is 6514631211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4247460 + ... + 4247723.

It is an arithmetic number, because the mean of its divisors is an integer number (118932576).

Almost surely, 2^1121364156 is an apocalyptic number.

It is an amenable number.

1121364156 is an abundant number, since it is smaller than the sum of its proper divisors (1733017668).

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

1121364156 is a wasteful number, since it uses less digits than its factorization.

1121364156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8495201 (or 8495199 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1121364156 is about 33486.7758376348. The cubic root of 1121364156 is about 1038.9202785897.

Adding to 1121364156 its reverse (6514631211), we get a palindrome (7635995367).

The spelling of 1121364156 in words is "one billion, one hundred twenty-one million, three hundred sixty-four thousand, one hundred fifty-six".