28061135 has 8 divisors (see below), whose sum is σ = 35654256. Its totient is φ = 21128320.

The previous prime is 28061123. The next prime is 28061161. The reversal of 28061135 is 53116082.

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

It is a de Polignac number, because none of the positive numbers 2^k-28061135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164981 + ... + 165150.

It is an arithmetic number, because the mean of its divisors is an integer number (4456782).

Almost surely, 2^28061135 is an apocalyptic number.

28061135 is a deficient number, since it is larger than the sum of its proper divisors (7593121).

28061135 is a wasteful number, since it uses less digits than its factorization.

28061135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330153.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 28061135 is about 5297.2761868719. The cubic root of 28061135 is about 303.8797387599.

The spelling of 28061135 in words is "twenty-eight million, sixty-one thousand, one hundred thirty-five".