331724541 has 4 divisors (see below), whose sum is σ = 442299392. Its totient is φ = 221149692.

The previous prime is 331724531. The next prime is 331724593. The reversal of 331724541 is 145427133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 331724541 - 2¹⁰ = 331723517 is a prime.

It is a super-2 number, since 2×331724541² = 220082342203321362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331724499 and 331724508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331724531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55287421 + ... + 55287426.

It is an arithmetic number, because the mean of its divisors is an integer number (110574848).

Almost surely, 2^331724541 is an apocalyptic number.

It is an amenable number.

331724541 is a deficient number, since it is larger than the sum of its proper divisors (110574851).

331724541 is a wasteful number, since it uses less digits than its factorization.

331724541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110574850.

The product of its digits is 10080, while the sum is 30.

The square root of 331724541 is about 18213.3067014203. The cubic root of 331724541 is about 692.2440006544.

The spelling of 331724541 in words is "three hundred thirty-one million, seven hundred twenty-four thousand, five hundred forty-one".