230143751289 has 9 divisors (see below), whose sum is σ = 332431941829. Its totient is φ = 153428208060.

The previous prime is 230143751261. The next prime is 230143751317. The reversal of 230143751289 is 982157341032.

It is a happy number.

The square root of 230143751289 is 479733.

It is a perfect power (a square), and thus also a powerful number.

230143751289 is a `hidden beast` number, since 23 + 0 + 1 + 4 + 37 + 512 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (230143751261) and next prime (230143751317).

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 230143751289 - 2²⁵ = 230110196857 is a prime.

It is a super-2 number, since 2×230143751289² (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 (230143751989) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1359244 + ... + 1519154.

Almost surely, 2^230143751289 is an apocalyptic number.

230143751289 is the 479733-rd square number.

230143751289 is the 239867-th centered octagonal number.

It is an amenable number.

230143751289 is a deficient number, since it is larger than the sum of its proper divisors (102288190540).

230143751289 is an frugal number, since it uses more digits than its factorization.

230143751289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319828 (or 159914 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 230143751289 in words is "two hundred thirty billion, one hundred forty-three million, seven hundred fifty-one thousand, two hundred eighty-nine".