243356631 has 8 divisors (see below), whose sum is σ = 370829184. Its totient is φ = 139060920.

The previous prime is 243356623. The next prime is 243356671. The reversal of 243356631 is 136653342.

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

It is not a de Polignac number, because 243356631 - 2³ = 243356623 is a prime.

It is a super-2 number, since 2×243356631² = 118444899703340322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243356592 and 243356601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243356611) 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, 5794185 + ... + 5794226.

It is an arithmetic number, because the mean of its divisors is an integer number (46353648).

Almost surely, 2^243356631 is an apocalyptic number.

243356631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

243356631 is a deficient number, since it is larger than the sum of its proper divisors (127472553).

243356631 is a wasteful number, since it uses less digits than its factorization.

243356631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11588421.

The product of its digits is 38880, while the sum is 33.

The square root of 243356631 is about 15599.8920188571. The cubic root of 243356631 is about 624.3302743912.

The spelling of 243356631 in words is "two hundred forty-three million, three hundred fifty-six thousand, six hundred thirty-one".