1125643430 has 8 divisors (see below), whose sum is σ = 2026158192. Its totient is φ = 450257368.

The previous prime is 1125643369. The next prime is 1125643447. The reversal of 1125643430 is 343465211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1125643393 and 1125643402.

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, 56282162 + ... + 56282181.

It is an arithmetic number, because the mean of its divisors is an integer number (253269774).

Almost surely, 2^1125643430 is an apocalyptic number.

1125643430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125643430 is a deficient number, since it is larger than the sum of its proper divisors (900514762).

1125643430 is a wasteful number, since it uses less digits than its factorization.

1125643430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112564350.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1125643430 is about 33550.6099795518. The cubic root of 1125643430 is about 1040.2401534900.

The spelling of 1125643430 in words is "one billion, one hundred twenty-five million, six hundred forty-three thousand, four hundred thirty".