28010145 has 8 divisors (see below), whose sum is σ = 44816256. Its totient is φ = 14938736.

The previous prime is 28010141. The next prime is 28010149. The reversal of 28010145 is 54101082.

It is an interprime number because it is at equal distance from previous prime (28010141) and next prime (28010149).

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

It is a cyclic number.

It is not a de Polignac number, because 28010145 - 2² = 28010141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28010141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933657 + ... + 933686.

It is an arithmetic number, because the mean of its divisors is an integer number (5602032).

Almost surely, 2^28010145 is an apocalyptic number.

It is an amenable number.

28010145 is a deficient number, since it is larger than the sum of its proper divisors (16806111).

28010145 is a wasteful number, since it uses less digits than its factorization.

28010145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867351.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 28010145 is about 5292.4611477081. The cubic root of 28010145 is about 303.6955668010.

The spelling of 28010145 in words is "twenty-eight million, ten thousand, one hundred forty-five".