1156443634 has 32 divisors (see below), whose sum is σ = 1866737664. Its totient is φ = 535975440.

The previous prime is 1156443619. The next prime is 1156443667. The reversal of 1156443634 is 4363446511.

It is a junction number, because it is equal to n+sod(n) for n = 1156443593 and 1156443602.

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 15 ways as a sum of consecutive naturals, for example, 256887 + ... + 261349.

It is an arithmetic number, because the mean of its divisors is an integer number (58335552).

Almost surely, 2^1156443634 is an apocalyptic number.

1156443634 is a deficient number, since it is larger than the sum of its proper divisors (710294030).

1156443634 is a wasteful number, since it uses less digits than its factorization.

1156443634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662.

The product of its digits is 103680, while the sum is 37.

The square root of 1156443634 is about 34006.5234036060. The cubic root of 1156443634 is about 1049.6427005011.

The spelling of 1156443634 in words is "one billion, one hundred fifty-six million, four hundred forty-three thousand, six hundred thirty-four".