2172487529 has 8 divisors (see below), whose sum is σ = 2207767968. Its totient is φ = 2137291200.

The previous prime is 2172487507. The next prime is 2172487547. The reversal of 2172487529 is 9257842712.

2172487529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2172487529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2172483529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32129 + ... + 73329.

It is an arithmetic number, because the mean of its divisors is an integer number (275970996).

Almost surely, 2^2172487529 is an apocalyptic number.

It is an amenable number.

2172487529 is a deficient number, since it is larger than the sum of its proper divisors (35280439).

2172487529 is an equidigital number, since it uses as much as digits as its factorization.

2172487529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42055.

The product of its digits is 564480, while the sum is 47.

The square root of 2172487529 is about 46609.9509654323. The cubic root of 2172487529 is about 1295.1470997614.

The spelling of 2172487529 in words is "two billion, one hundred seventy-two million, four hundred eighty-seven thousand, five hundred twenty-nine".