243155213054 has 8 divisors (see below), whose sum is σ = 392789190360. Its totient is φ = 112225482936.

The previous prime is 243155213033. The next prime is 243155213087. The reversal of 243155213054 is 450312551342.

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

It is a super-2 number, since 2×243155213054² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 4676061764 + ... + 4676061815.

It is an arithmetic number, because the mean of its divisors is an integer number (49098648795).

Almost surely, 2^243155213054 is an apocalyptic number.

243155213054 is a deficient number, since it is larger than the sum of its proper divisors (149633977306).

243155213054 is a wasteful number, since it uses less digits than its factorization.

243155213054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9352123594.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 243155213054 its reverse (450312551342), we get a palindrome (693467764396).

The spelling of 243155213054 in words is "two hundred forty-three billion, one hundred fifty-five million, two hundred thirteen thousand, fifty-four".