242152453 has 4 divisors (see below), whose sum is σ = 243505440. Its totient is φ = 240799468.

The previous prime is 242152447. The next prime is 242152499. The reversal of 242152453 is 354251242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354251242 = 2 ⋅177125621.

It is a cyclic number.

It is not a de Polignac number, because 242152453 - 2²⁵ = 208598021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242152153) 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, 676225 + ... + 676582.

It is an arithmetic number, because the mean of its divisors is an integer number (60876360).

Almost surely, 2^242152453 is an apocalyptic number.

It is an amenable number.

242152453 is a deficient number, since it is larger than the sum of its proper divisors (1352987).

242152453 is a wasteful number, since it uses less digits than its factorization.

242152453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352986.

The product of its digits is 9600, while the sum is 28.

The square root of 242152453 is about 15561.2484396336. The cubic root of 242152453 is about 623.2988002323.

It can be divided in two parts, 24215 and 2453, that multiplied together give a palindrome (59399395).

The spelling of 242152453 in words is "two hundred forty-two million, one hundred fifty-two thousand, four hundred fifty-three".