28150061 has 4 divisors (see below), whose sum is σ = 28208352. Its totient is φ = 28091772.

The previous prime is 28150037. The next prime is 28150063. The reversal of 28150061 is 16005182.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28150061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28150063) 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 3 ways as a sum of consecutive naturals, for example, 28415 + ... + 29388.

It is an arithmetic number, because the mean of its divisors is an integer number (7052088).

Almost surely, 2^28150061 is an apocalyptic number.

It is an amenable number.

28150061 is a deficient number, since it is larger than the sum of its proper divisors (58291).

28150061 is an equidigital number, since it uses as much as digits as its factorization.

28150061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58290.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 28150061 is about 5305.6631065306. The cubic root of 28150061 is about 304.2003995198.

The spelling of 28150061 in words is "twenty-eight million, one hundred fifty thousand, sixty-one".