242151553 has 8 divisors (see below), whose sum is σ = 293023872. Its totient is φ = 195349056.

The previous prime is 242151529. The next prime is 242151563. The reversal of 242151553 is 355151242.

242151553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 242151553 - 2²⁵ = 208597121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242151563) 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, 1017325 + ... + 1017562.

It is an arithmetic number, because the mean of its divisors is an integer number (36627984).

Almost surely, 2^242151553 is an apocalyptic number.

It is an amenable number.

242151553 is a deficient number, since it is larger than the sum of its proper divisors (50872319).

242151553 is a wasteful number, since it uses less digits than its factorization.

242151553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034911.

The product of its digits is 6000, while the sum is 28.

The square root of 242151553 is about 15561.2195216185. The cubic root of 242151553 is about 623.2980280333.

The spelling of 242151553 in words is "two hundred forty-two million, one hundred fifty-one thousand, five hundred fifty-three".