19961514 has 24 divisors (see below), whose sum is σ = 45527040. Its totient is φ = 6303528.

The previous prime is 19961509. The next prime is 19961527. The reversal of 19961514 is 41516991.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 28842 + ... + 29525.

It is an arithmetic number, because the mean of its divisors is an integer number (1896960).

Almost surely, 2^19961514 is an apocalyptic number.

19961514 is an abundant number, since it is smaller than the sum of its proper divisors (25565526).

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

19961514 is a wasteful number, since it uses less digits than its factorization.

19961514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58394 (or 58391 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 19961514 is about 4467.8310173954. The cubic root of 19961514 is about 271.2675380648.

The spelling of 19961514 in words is "nineteen million, nine hundred sixty-one thousand, five hundred fourteen".