1948231 has 2 divisors, whose sum is σ = 1948232. Its totient is φ = 1948230.

The previous prime is 1948229. The next prime is 1948237. The reversal of 1948231 is 1328491.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1328491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1948231 - 2¹ = 1948229 is a prime.

It is a super-2 number, since 2×1948231² = 7591208058722, which contains 22 as substring.

Together with 1948229, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1948231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1948237) 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, 974115 + 974116.

It is an arithmetic number, because the mean of its divisors is an integer number (974116).

2^1948231 is an apocalyptic number.

1948231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948231 is an equidigital number, since it uses as much as digits as its factorization.

1948231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 1948231 is about 1395.7904570529. The cubic root of 1948231 is about 124.8955073413.

The spelling of 1948231 in words is "one million, nine hundred forty-eight thousand, two hundred thirty-one".