4172240129 has 6 divisors (see below), whose sum is σ = 4179375090. Its totient is φ = 4165117296.

The previous prime is 4172240101. The next prime is 4172240141. The reversal of 4172240129 is 9210422714.

It is a happy number.

4172240129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2452230400 + 1720009729 = 49520^2 + 41473^2 .

It is not a de Polignac number, because 4172240129 - 2¹⁶ = 4172174593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4172240095 and 4172240104.

It is not an unprimeable number, because it can be changed into a prime (4172240629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 377717 + ... + 388605.

It is an arithmetic number, because the mean of its divisors is an integer number (696562515).

Almost surely, 2^4172240129 is an apocalyptic number.

It is an amenable number.

4172240129 is a deficient number, since it is larger than the sum of its proper divisors (7134961).

4172240129 is an frugal number, since it uses more digits than its factorization.

4172240129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12127 (or 11508 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 4172240129 is about 64592.8798630313. The cubic root of 4172240129 is about 1609.8661371671.

The spelling of 4172240129 in words is "four billion, one hundred seventy-two million, two hundred forty thousand, one hundred twenty-nine".