243141554 has 8 divisors (see below), whose sum is σ = 364779948. Its totient is φ = 121548240.

The previous prime is 243141553. The next prime is 243141571. The reversal of 243141554 is 455141342.

It can be written as a sum of positive squares in 2 ways, for example, as 237006025 + 6135529 = 15395^2 + 2477^2 .

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

It is not an unprimeable number, because it can be changed into a prime (243141553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11084 + ... + 24680.

Almost surely, 2^243141554 is an apocalyptic number.

243141554 is a deficient number, since it is larger than the sum of its proper divisors (121638394).

243141554 is a wasteful number, since it uses less digits than its factorization.

243141554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22540.

The product of its digits is 9600, while the sum is 29.

The square root of 243141554 is about 15592.9969537610. The cubic root of 243141554 is about 624.1462938415.

Adding to 243141554 its reverse (455141342), we get a palindrome (698282896).

The spelling of 243141554 in words is "two hundred forty-three million, one hundred forty-one thousand, five hundred fifty-four".