1919148 has 96 divisors (see below), whose sum is σ = 5849088. Its totient is φ = 475200.

The previous prime is 1919123. The next prime is 1919149. The reversal of 1919148 is 8419191.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1919149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28611 + ... + 28677.

It is an arithmetic number, because the mean of its divisors is an integer number (60928).

2^1919148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1919148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2924544).

1919148 is an abundant number, since it is smaller than the sum of its proper divisors (3929940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1919148 is a wasteful number, since it uses less digits than its factorization.

1919148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 121 counting only the distinct ones).

The product of its digits is 2592, while the sum is 33.

The square root of 1919148 is about 1385.3331729227. Note that the first 3 decimals coincide. The cubic root of 1919148 is about 124.2709130591.

It can be divided in two parts, 191 and 9148, that added together give a palindrome (9339).

The spelling of 1919148 in words is "one million, nine hundred nineteen thousand, one hundred forty-eight".