152234581 has 2 divisors, whose sum is σ = 152234582. Its totient is φ = 152234580.

The previous prime is 152234549. The next prime is 152234587. The reversal of 152234581 is 185432251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148011556 + 4223025 = 12166^2 + 2055^2 .

It is an emirp because it is prime and its reverse (185432251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 152234581 - 2⁵ = 152234549 is a prime.

It is a super-2 number, since 2×152234581² = 46350735304491122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152234587) 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, 76117290 + 76117291.

It is an arithmetic number, because the mean of its divisors is an integer number (76117291).

Almost surely, 2^152234581 is an apocalyptic number.

It is an amenable number.

152234581 is a deficient number, since it is larger than the sum of its proper divisors (1).

152234581 is an equidigital number, since it uses as much as digits as its factorization.

152234581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 31.

The square root of 152234581 is about 12338.3378540223. The cubic root of 152234581 is about 533.9547308808.

The spelling of 152234581 in words is "one hundred fifty-two million, two hundred thirty-four thousand, five hundred eighty-one".