243155353445 has 24 divisors (see below), whose sum is σ = 310387668864. Its totient is φ = 182829056256.

The previous prime is 243155353429. The next prime is 243155353451. The reversal of 243155353445 is 544353551342.

It is not a de Polignac number, because 243155353445 - 2⁴ = 243155353429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243155353396 and 243155353405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 934784 + ... + 1166246.

It is an arithmetic number, because the mean of its divisors is an integer number (12932819536).

Almost surely, 2^243155353445 is an apocalyptic number.

It is an amenable number.

243155353445 is a deficient number, since it is larger than the sum of its proper divisors (67232315419).

243155353445 is a wasteful number, since it uses less digits than its factorization.

243155353445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232229 (or 232212 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 44.

The spelling of 243155353445 in words is "two hundred forty-three billion, one hundred fifty-five million, three hundred fifty-three thousand, four hundred forty-five".