19750105 has 16 divisors (see below), whose sum is σ = 24376320. Its totient is φ = 15354432.

The previous prime is 19750091. The next prime is 19750109. The reversal of 19750105 is 50105791.

It is a cyclic number.

It is not a de Polignac number, because 19750105 - 2⁹ = 19749593 is a prime.

It is a super-2 number, since 2×19750105² = 780133295022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19750109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53632 + ... + 53998.

It is an arithmetic number, because the mean of its divisors is an integer number (1523520).

Almost surely, 2^19750105 is an apocalyptic number.

It is an amenable number.

19750105 is a deficient number, since it is larger than the sum of its proper divisors (4626215).

19750105 is a wasteful number, since it uses less digits than its factorization.

19750105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 19750105 is about 4444.1090220651. The cubic root of 19750105 is about 270.3064878100.

Adding to 19750105 its reverse (50105791), we get a palindrome (69855896).

The spelling of 19750105 in words is "nineteen million, seven hundred fifty thousand, one hundred five".