1001089534 has 4 divisors (see below), whose sum is σ = 1501634304. Its totient is φ = 500544766.

The previous prime is 1001089469. The next prime is 1001089543. The reversal of 1001089534 is 4359801001.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1001089496 and 1001089505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250272382 + ... + 250272385.

It is an arithmetic number, because the mean of its divisors is an integer number (375408576).

Almost surely, 2^1001089534 is an apocalyptic number.

1001089534 is a deficient number, since it is larger than the sum of its proper divisors (500544770).

1001089534 is an equidigital number, since it uses as much as digits as its factorization.

1001089534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500544769.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1001089534 is about 31639.9989570164. The cubic root of 1001089534 is about 1000.3630461815.

The spelling of 1001089534 in words is "one billion, one million, eighty-nine thousand, five hundred thirty-four".