23154434152 has 8 divisors (see below), whose sum is σ = 43414564050. Its totient is φ = 11577217072.

The previous prime is 23154434119. The next prime is 23154434153. The reversal of 23154434152 is 25143445132.

It can be written as a sum of positive squares in only one way, i.e., 18239582916 + 4914851236 = 135054^2 + 70106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×23154434152² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23154434153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1447152127 + ... + 1447152142.

Almost surely, 2^23154434152 is an apocalyptic number.

It is an amenable number.

23154434152 is a deficient number, since it is larger than the sum of its proper divisors (20260129898).

23154434152 is a wasteful number, since it uses less digits than its factorization.

23154434152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894304275 (or 2894304271 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

Adding to 23154434152 its reverse (25143445132), we get a palindrome (48297879284).

The spelling of 23154434152 in words is "twenty-three billion, one hundred fifty-four million, four hundred thirty-four thousand, one hundred fifty-two".