231155426 has 8 divisors (see below), whose sum is σ = 367129260. Its totient is φ = 108779008.

The previous prime is 231155411. The next prime is 231155459. The reversal of 231155426 is 624551132.

It can be written as a sum of positive squares in 2 ways, for example, as 228040201 + 3115225 = 15101^2 + 1765^2 .

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, 3399311 + ... + 3399378.

Almost surely, 2^231155426 is an apocalyptic number.

231155426 is a deficient number, since it is larger than the sum of its proper divisors (135973834).

231155426 is a wasteful number, since it uses less digits than its factorization.

231155426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798708.

The product of its digits is 7200, while the sum is 29.

The square root of 231155426 is about 15203.7964337859. The cubic root of 231155426 is about 613.7168266312.

The spelling of 231155426 in words is "two hundred thirty-one million, one hundred fifty-five thousand, four hundred twenty-six".