19528201 has 8 divisors (see below), whose sum is σ = 24346944. Its totient is φ = 15216720.

The previous prime is 19528199. The next prime is 19528207. The reversal of 19528201 is 10282591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19528201 - 2¹ = 19528199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19528201.

It is not an unprimeable number, because it can be changed into a prime (19528207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126730 + ... + 126883.

It is an arithmetic number, because the mean of its divisors is an integer number (3043368).

Almost surely, 2^19528201 is an apocalyptic number.

19528201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19528201 is a deficient number, since it is larger than the sum of its proper divisors (4818743).

19528201 is a wasteful number, since it uses less digits than its factorization.

19528201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253631.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 19528201 is about 4419.0724139801. The cubic root of 19528201 is about 269.2903219325.

It can be divided in two parts, 1952 and 8201, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 19528201 in words is "nineteen million, five hundred twenty-eight thousand, two hundred one".