1901148 has 12 divisors (see below), whose sum is σ = 4436040. Its totient is φ = 633712.

The previous prime is 1901147. The next prime is 1901177. The reversal of 1901148 is 8411091.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1901148² = 7228727435808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79203 + ... + 79226.

It is an arithmetic number, because the mean of its divisors is an integer number (369670).

2^1901148 is an apocalyptic number.

It is an amenable number.

1901148 is an abundant number, since it is smaller than the sum of its proper divisors (2534892).

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

1901148 is a wasteful number, since it uses less digits than its factorization.

1901148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158436 (or 158434 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1901148 is about 1378.8212356937. The cubic root of 1901148 is about 123.8811730206.

The spelling of 1901148 in words is "one million, nine hundred one thousand, one hundred forty-eight".