19050101 has 4 divisors (see below), whose sum is σ = 21771552. Its totient is φ = 16328652.

The previous prime is 19050091. The next prime is 19050107. The reversal of 19050101 is 10105091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19050101 is a prime.

It is a super-2 number, since 2×19050101² = 725812696220402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19050101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19050107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1360715 + ... + 1360728.

It is an arithmetic number, because the mean of its divisors is an integer number (5442888).

Almost surely, 2^19050101 is an apocalyptic number.

It is an amenable number.

19050101 is a deficient number, since it is larger than the sum of its proper divisors (2721451).

19050101 is an equidigital number, since it uses as much as digits as its factorization.

19050101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721450.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 19050101 is about 4364.6421388242. The cubic root of 19050101 is about 267.0745021606.

Adding to 19050101 its reverse (10105091), we get a palindrome (29155192).

The spelling of 19050101 in words is "nineteen million, fifty thousand, one hundred one".