243555150 has 24 divisors (see below), whose sum is σ = 604017144. Its totient is φ = 64948000.

The previous prime is 243555077. The next prime is 243555161. The reversal of 243555150 is 51555342.

It is a happy number.

243555150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243555150² = 118638222183045000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 811701 + ... + 812000.

It is an arithmetic number, because the mean of its divisors is an integer number (25167381).

Almost surely, 2^243555150 is an apocalyptic number.

243555150 is an abundant number, since it is smaller than the sum of its proper divisors (360461994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243555150 is a wasteful number, since it uses less digits than its factorization.

243555150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623716 (or 1623711 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 243555150 is about 15606.2535542647. The cubic root of 243555150 is about 624.4999947650.

The spelling of 243555150 in words is "two hundred forty-three million, five hundred fifty-five thousand, one hundred fifty".