232148681 has 2 divisors, whose sum is σ = 232148682. Its totient is φ = 232148680.

The previous prime is 232148659. The next prime is 232148711. The reversal of 232148681 is 186841232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193460281 + 38688400 = 13909^2 + 6220^2 .

It is a cyclic number.

It is not a de Polignac number, because 232148681 - 2²⁶ = 165039817 is a prime.

It is a super-2 number, since 2×232148681² = 107786020180079522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_12754259 and since 232148681 and 12754259 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (232148611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116074340 + 116074341.

It is an arithmetic number, because the mean of its divisors is an integer number (116074341).

Almost surely, 2^232148681 is an apocalyptic number.

It is an amenable number.

232148681 is a deficient number, since it is larger than the sum of its proper divisors (1).

232148681 is an equidigital number, since it uses as much as digits as its factorization.

232148681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 35.

The square root of 232148681 is about 15236.4261229463. The cubic root of 232148681 is about 614.5946000772.

The spelling of 232148681 in words is "two hundred thirty-two million, one hundred forty-eight thousand, six hundred eighty-one".