19650112 has 14 divisors (see below), whose sum is σ = 38993318. Its totient is φ = 9825024.

The previous prime is 19650107. The next prime is 19650143. The reversal of 19650112 is 21105691.

It can be written as a sum of positive squares in only one way, i.e., 11943936 + 7706176 = 3456^2 + 2776^2 .

It is a super-2 number, since 2×19650112² = 772253803225088, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 153453 + ... + 153580.

It is an arithmetic number, because the mean of its divisors is an integer number (2785237).

Almost surely, 2^19650112 is an apocalyptic number.

It is an amenable number.

19650112 is a deficient number, since it is larger than the sum of its proper divisors (19343206).

19650112 is an equidigital number, since it uses as much as digits as its factorization.

19650112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307045 (or 307035 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 19650112 is about 4432.8446848497. The cubic root of 19650112 is about 269.8495366513.

The spelling of 19650112 in words is "nineteen million, six hundred fifty thousand, one hundred twelve".