7252129 has 6 divisors (see below), whose sum is σ = 7654290. Its totient is φ = 6870096.

The previous prime is 7252087. The next prime is 7252151. The reversal of 7252129 is 9212527.

It can be written as a sum of positive squares in only one way, i.e., 4941729 + 2310400 = 2223^2 + 1520^2 .

It is not a de Polignac number, because 7252129 - 2⁹ = 7251617 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7252097 and 7252106.

It is not an unprimeable number, because it can be changed into a prime (7252169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9684 + ... + 10405.

It is an arithmetic number, because the mean of its divisors is an integer number (1275715).

Almost surely, 2^7252129 is an apocalyptic number.

It is an amenable number.

7252129 is a deficient number, since it is larger than the sum of its proper divisors (402161).

7252129 is a wasteful number, since it uses less digits than its factorization.

7252129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20127 (or 20108 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 7252129 is about 2692.9777199227. The cubic root of 7252129 is about 193.5627752264.

It can be divided in two parts, 7252 and 129, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 7252129 in words is "seven million, two hundred fifty-two thousand, one hundred twenty-nine".