1885151 has 2 divisors, whose sum is σ = 1885152. Its totient is φ = 1885150.

The previous prime is 1885069. The next prime is 1885153. The reversal of 1885151 is 1515881.

It is a strong prime.

It is an emirp because it is prime and its reverse (1515881) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1885151 is a prime.

Together with 1885153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1885153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 942575 + 942576.

It is an arithmetic number, because the mean of its divisors is an integer number (942576).

2^1885151 is an apocalyptic number.

1885151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1885151 is an equidigital number, since it uses as much as digits as its factorization.

1885151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1600, while the sum is 29.

The square root of 1885151 is about 1373.0080116299. The cubic root of 1885151 is about 123.5327323948.

It can be divided in two parts, 1885 and 151, that multiplied together give a triangular number (284635 = T₇₅₄).

The spelling of 1885151 in words is "one million, eight hundred eighty-five thousand, one hundred fifty-one".