3172424137 has 4 divisors (see below), whose sum is σ = 3172541380. Its totient is φ = 3172306896.

The previous prime is 3172424131. The next prime is 3172424161. The reversal of 3172424137 is 7314242713.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7314242713 = 71 ⋅103017503.

It can be written as a sum of positive squares in 2 ways, for example, as 458430921 + 2713993216 = 21411^2 + 52096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3172424137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3172424131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4939 + ... + 79807.

It is an arithmetic number, because the mean of its divisors is an integer number (793135345).

Almost surely, 2^3172424137 is an apocalyptic number.

It is an amenable number.

3172424137 is a deficient number, since it is larger than the sum of its proper divisors (117243).

3172424137 is an equidigital number, since it uses as much as digits as its factorization.

3172424137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117242.

The product of its digits is 28224, while the sum is 34.

The square root of 3172424137 is about 56324.2766220748. The cubic root of 3172424137 is about 1469.3674507119.

The spelling of 3172424137 in words is "three billion, one hundred seventy-two million, four hundred twenty-four thousand, one hundred thirty-seven".