1381148 has 24 divisors (see below), whose sum is σ = 2696400. Its totient is φ = 615168.

The previous prime is 1381147. The next prime is 1381153. The reversal of 1381148 is 8411831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758 + ... + 1826.

It is an arithmetic number, because the mean of its divisors is an integer number (112350).

2^1381148 is an apocalyptic number.

It is an amenable number.

1381148 is a deficient number, since it is larger than the sum of its proper divisors (1315252).

1381148 is a wasteful number, since it uses less digits than its factorization.

1381148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1107 counting only the distinct ones).

The product of its digits is 768, while the sum is 26.

The square root of 1381148 is about 1175.2225321189. Note that the first 3 decimals coincide. The cubic root of 1381148 is about 111.3644918188.

Adding to 1381148 its reverse (8411831), we get a palindrome (9792979).

The spelling of 1381148 in words is "one million, three hundred eighty-one thousand, one hundred forty-eight".