231878495 has 8 divisors (see below), whose sum is σ = 284174784. Its totient is φ = 181555744.

The previous prime is 231878477. The next prime is 231878497. The reversal of 231878495 is 594878132.

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 231878495 - 2¹⁸ = 231616351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231878497) 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, 493124 + ... + 493593.

It is an arithmetic number, because the mean of its divisors is an integer number (35521848).

Almost surely, 2^231878495 is an apocalyptic number.

231878495 is a deficient number, since it is larger than the sum of its proper divisors (52296289).

231878495 is an equidigital number, since it uses as much as digits as its factorization.

231878495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986769.

The product of its digits is 483840, while the sum is 47.

The square root of 231878495 is about 15227.5570923244. The cubic root of 231878495 is about 614.3560757566.

The spelling of 231878495 in words is "two hundred thirty-one million, eight hundred seventy-eight thousand, four hundred ninety-five".