1121554430 has 16 divisors (see below), whose sum is σ = 2137551120. Its totient is φ = 422232192.

The previous prime is 1121554429. The next prime is 1121554529. The reversal of 1121554430 is 344551211.

It is a self number, because there is not a number n which added to its sum of digits gives 1121554430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3298520 + ... + 3298859.

It is an arithmetic number, because the mean of its divisors is an integer number (133596945).

Almost surely, 2^1121554430 is an apocalyptic number.

1121554430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121554430 is a deficient number, since it is larger than the sum of its proper divisors (1015996690).

1121554430 is a wasteful number, since it uses less digits than its factorization.

1121554430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6597403.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1121554430 is about 33489.6167490761. The cubic root of 1121554430 is about 1038.9790368846.

The spelling of 1121554430 in words is "one billion, one hundred twenty-one million, five hundred fifty-four thousand, four hundred thirty".