231957503 has 8 divisors (see below), whose sum is σ = 246169440. Its totient is φ = 217808640.

The previous prime is 231957487. The next prime is 231957533. The reversal of 231957503 is 305759132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 231957503 - 2⁴ = 231957487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231957533) 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, 8078 + ... + 23003.

It is an arithmetic number, because the mean of its divisors is an integer number (30771180).

Almost surely, 2^231957503 is an apocalyptic number.

231957503 is a deficient number, since it is larger than the sum of its proper divisors (14211937).

231957503 is a wasteful number, since it uses less digits than its factorization.

231957503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31537.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 231957503 is about 15230.1511154683. The cubic root of 231957503 is about 614.4258443840.

The spelling of 231957503 in words is "two hundred thirty-one million, nine hundred fifty-seven thousand, five hundred three".