71230825 has 6 divisors (see below), whose sum is σ = 88326254. Its totient is φ = 56984640.

The previous prime is 71230813. The next prime is 71230879. The reversal of 71230825 is 52803217.

It can be written as a sum of positive squares in 3 ways, for example, as 3810304 + 67420521 = 1952^2 + 8211^2 .

It is not a de Polignac number, because 71230825 - 2¹³ = 71222633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71230793 and 71230802.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1424592 + ... + 1424641.

Almost surely, 2^71230825 is an apocalyptic number.

It is an amenable number.

71230825 is a deficient number, since it is larger than the sum of its proper divisors (17095429).

71230825 is a wasteful number, since it uses less digits than its factorization.

71230825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849243 (or 2849238 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 71230825 is about 8439.8356026643. The cubic root of 71230825 is about 414.5300239247.

The spelling of 71230825 in words is "seventy-one million, two hundred thirty thousand, eight hundred twenty-five".