187025849 has 2 divisors, whose sum is σ = 187025850. Its totient is φ = 187025848.

The previous prime is 187025833. The next prime is 187025851. The reversal of 187025849 is 948520781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133633600 + 53392249 = 11560^2 + 7307^2 .

It is a cyclic number.

It is not a de Polignac number, because 187025849 - 2⁴ = 187025833 is a prime.

Together with 187025851, 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 (187025819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93512924 + 93512925.

It is an arithmetic number, because the mean of its divisors is an integer number (93512925).

Almost surely, 2^187025849 is an apocalyptic number.

It is an amenable number.

187025849 is a deficient number, since it is larger than the sum of its proper divisors (1).

187025849 is an equidigital number, since it uses as much as digits as its factorization.

187025849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 187025849 is about 13675.7394315627. The cubic root of 187025849 is about 571.8742541083.

The spelling of 187025849 in words is "one hundred eighty-seven million, twenty-five thousand, eight hundred forty-nine".