231298906 has 8 divisors (see below), whose sum is σ = 367357140. Its totient is φ = 108846528.

The previous prime is 231298861. The next prime is 231298927. The reversal of 231298906 is 609892132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 230888025 + 410881 = 15195^2 + 641^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3401421 + ... + 3401488.

Almost surely, 2^231298906 is an apocalyptic number.

231298906 is a deficient number, since it is larger than the sum of its proper divisors (136058234).

231298906 is a wasteful number, since it uses less digits than its factorization.

231298906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6802928.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 231298906 is about 15208.5142601110. The cubic root of 231298906 is about 613.8437799962.

The spelling of 231298906 in words is "two hundred thirty-one million, two hundred ninety-eight thousand, nine hundred six".