28151741 has 4 divisors (see below), whose sum is σ = 28226400. Its totient is φ = 28077084.

The previous prime is 28151723. The next prime is 28151797. The reversal of 28151741 is 14715182.

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 not a de Polignac number, because 28151741 - 2¹⁸ = 27889597 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 (28151041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36761 + ... + 37518.

It is an arithmetic number, because the mean of its divisors is an integer number (7056600).

Almost surely, 2^28151741 is an apocalyptic number.

It is an amenable number.

28151741 is a deficient number, since it is larger than the sum of its proper divisors (74659).

28151741 is an equidigital number, since it uses as much as digits as its factorization.

28151741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74658.

The product of its digits is 2240, while the sum is 29.

The square root of 28151741 is about 5305.8214255665. The cubic root of 28151741 is about 304.2064509751.

The spelling of 28151741 in words is "twenty-eight million, one hundred fifty-one thousand, seven hundred forty-one".