1948149 has 36 divisors (see below), whose sum is σ = 3448224. Its totient is φ = 1037952.

The previous prime is 1948147. The next prime is 1948171. The reversal of 1948149 is 9418491.

It is not a de Polignac number, because 1948149 - 2¹ = 1948147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948147) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18154 + ... + 18260.

It is an arithmetic number, because the mean of its divisors is an integer number (95784).

2^1948149 is an apocalyptic number.

It is an amenable number.

1948149 is a deficient number, since it is larger than the sum of its proper divisors (1500075).

1948149 is a wasteful number, since it uses less digits than its factorization.

1948149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 134 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1948149 is about 1395.7610827072. The cubic root of 1948149 is about 124.8937550550.

The spelling of 1948149 in words is "one million, nine hundred forty-eight thousand, one hundred forty-nine".