152187881 has 2 divisors, whose sum is σ = 152187882. Its totient is φ = 152187880.

The previous prime is 152187823. The next prime is 152187883. The reversal of 152187881 is 188781251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149328400 + 2859481 = 12220^2 + 1691^2 .

It is a cyclic number.

It is not a de Polignac number, because 152187881 - 2⁶ = 152187817 is a prime.

It is a super-2 number, since 2×152187881² = 46322302246540322, which contains 22 as substring.

Together with 152187883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (152187883) 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, 76093940 + 76093941.

It is an arithmetic number, because the mean of its divisors is an integer number (76093941).

Almost surely, 2^152187881 is an apocalyptic number.

It is an amenable number.

152187881 is a deficient number, since it is larger than the sum of its proper divisors (1).

152187881 is an equidigital number, since it uses as much as digits as its factorization.

152187881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35840, while the sum is 41.

The square root of 152187881 is about 12336.4452335347. The cubic root of 152187881 is about 533.9001260379.

The spelling of 152187881 in words is "one hundred fifty-two million, one hundred eighty-seven thousand, eight hundred eighty-one".