243402051 has 8 divisors (see below), whose sum is σ = 324717904. Its totient is φ = 162177120.

The previous prime is 243402043. The next prime is 243402053. The reversal of 243402051 is 150204342.

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

It is not a de Polignac number, because 243402051 - 2³ = 243402043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243402053) 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, 16216 + ... + 27381.

It is an arithmetic number, because the mean of its divisors is an integer number (40589738).

Almost surely, 2^243402051 is an apocalyptic number.

243402051 is a deficient number, since it is larger than the sum of its proper divisors (81315853).

243402051 is a wasteful number, since it uses less digits than its factorization.

243402051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45461.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 243402051 is about 15601.3477302443. The cubic root of 243402051 is about 624.3691135726.

Adding to 243402051 its reverse (150204342), we get a palindrome (393606393).

The spelling of 243402051 in words is "two hundred forty-three million, four hundred two thousand, fifty-one".