1121654004 has 12 divisors (see below), whose sum is σ = 2617192704. Its totient is φ = 373884664.

The previous prime is 1121653993. The next prime is 1121654021. The reversal of 1121654004 is 4004561211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46735572 + ... + 46735595.

It is an arithmetic number, because the mean of its divisors is an integer number (218099392).

Almost surely, 2^1121654004 is an apocalyptic number.

It is an amenable number.

1121654004 is an abundant number, since it is smaller than the sum of its proper divisors (1495538700).

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

1121654004 is a wasteful number, since it uses less digits than its factorization.

1121654004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93471174 (or 93471172 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1121654004 is about 33491.1033559660. The cubic root of 1121654004 is about 1039.0097835681.

The spelling of 1121654004 in words is "one billion, one hundred twenty-one million, six hundred fifty-four thousand, four".