231604037 has 12 divisors (see below), whose sum is σ = 270295596. Its totient is φ = 197870400.

The previous prime is 231604027. The next prime is 231604057. The reversal of 231604037 is 730406132.

It can be written as a sum of positive squares in 2 ways, for example, as 10962721 + 220641316 = 3311^2 + 14854^2 .

It is not a de Polignac number, because 231604037 - 2⁶ = 231603973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231603997 and 231604015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231604027) 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 11 ways as a sum of consecutive naturals, for example, 7787 + ... + 22887.

It is an arithmetic number, because the mean of its divisors is an integer number (22524633).

Almost surely, 2^231604037 is an apocalyptic number.

It is an amenable number.

231604037 is a deficient number, since it is larger than the sum of its proper divisors (38691559).

231604037 is a wasteful number, since it uses less digits than its factorization.

231604037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15428 (or 15421 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 231604037 is about 15218.5425386270. The cubic root of 231604037 is about 614.1135902695.

The spelling of 231604037 in words is "two hundred thirty-one million, six hundred four thousand, thirty-seven".