28151029 has 2 divisors, whose sum is σ = 28151030. Its totient is φ = 28151028.

The previous prime is 28150999. The next prime is 28151041. The reversal of 28151029 is 92015182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23020804 + 5130225 = 4798^2 + 2265^2 .

It is a cyclic number.

It is not a de Polignac number, because 28151029 - 2⁹ = 28150517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28150988 and 28151006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28151059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14075514 + 14075515.

It is an arithmetic number, because the mean of its divisors is an integer number (14075515).

Almost surely, 2^28151029 is an apocalyptic number.

It is an amenable number.

28151029 is a deficient number, since it is larger than the sum of its proper divisors (1).

28151029 is an equidigital number, since it uses as much as digits as its factorization.

28151029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 28151029 is about 5305.7543290281. The cubic root of 28151029 is about 304.2038863401.

It can be divided in two parts, 2815 and 1029, that added together give a square (3844 = 62²).

The spelling of 28151029 in words is "twenty-eight million, one hundred fifty-one thousand, twenty-nine".