243152451 has 6 divisors (see below), whose sum is σ = 351220220. Its totient is φ = 162101628.

The previous prime is 243152353. The next prime is 243152461. The reversal of 243152451 is 154251342.

It is not a de Polignac number, because 243152451 - 2¹⁰ = 243151427 is a prime.

It is a super-2 number, since 2×243152451² = 118246228854614802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243152461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13508461 + ... + 13508478.

Almost surely, 2^243152451 is an apocalyptic number.

243152451 is a deficient number, since it is larger than the sum of its proper divisors (108067769).

243152451 is a wasteful number, since it uses less digits than its factorization.

243152451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27016945 (or 27016942 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 243152451 is about 15593.3463695257. The cubic root of 243152451 is about 624.1556179307.

The spelling of 243152451 in words is "two hundred forty-three million, one hundred fifty-two thousand, four hundred fifty-one".