243155200153 has 4 divisors (see below), whose sum is σ = 243164377188. Its totient is φ = 243146023120.

The previous prime is 243155200133. The next prime is 243155200163. The reversal of 243155200153 is 351002551342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 241785608089 + 1369592064 = 491717^2 + 37008^2 .

It is a cyclic number.

It is not a de Polignac number, because 243155200153 - 2⁵ = 243155200121 is a prime.

It is a super-2 number, since 2×243155200153² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243155200133) 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, 4548658 + ... + 4601803.

It is an arithmetic number, because the mean of its divisors is an integer number (60791094297).

Almost surely, 2^243155200153 is an apocalyptic number.

It is an amenable number.

243155200153 is a deficient number, since it is larger than the sum of its proper divisors (9177035).

243155200153 is an equidigital number, since it uses as much as digits as its factorization.

243155200153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9177034.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 243155200153 its reverse (351002551342), we get a palindrome (594157751495).

The spelling of 243155200153 in words is "two hundred forty-three billion, one hundred fifty-five million, two hundred thousand, one hundred fifty-three".