19951148 has 24 divisors (see below), whose sum is σ = 40559904. Its totient is φ = 8409600.

The previous prime is 19951147. The next prime is 19951153. The reversal of 19951148 is 84115991.

It is not an unprimeable number, because it can be changed into a prime (19951147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4133 + ... + 7548.

It is an arithmetic number, because the mean of its divisors is an integer number (1689996).

Almost surely, 2^19951148 is an apocalyptic number.

It is an amenable number.

19951148 is an abundant number, since it is smaller than the sum of its proper divisors (20608756).

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

19951148 is a wasteful number, since it uses less digits than its factorization.

19951148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11753 (or 11751 counting only the distinct ones).

The product of its digits is 12960, while the sum is 38.

The square root of 19951148 is about 4466.6707960180. The cubic root of 19951148 is about 271.2205735879.

The spelling of 19951148 in words is "nineteen million, nine hundred fifty-one thousand, one hundred forty-eight".