19895145 has 8 divisors (see below), whose sum is σ = 31832256. Its totient is φ = 10610736.

The previous prime is 19895143. The next prime is 19895153. The reversal of 19895145 is 54159891.

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

It is not a de Polignac number, because 19895145 - 2¹ = 19895143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19895097 and 19895106.

It is not an unprimeable number, because it can be changed into a prime (19895143) 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, 663157 + ... + 663186.

It is an arithmetic number, because the mean of its divisors is an integer number (3979032).

Almost surely, 2^19895145 is an apocalyptic number.

19895145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19895145 is a deficient number, since it is larger than the sum of its proper divisors (11937111).

19895145 is a wasteful number, since it uses less digits than its factorization.

19895145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326351.

The product of its digits is 64800, while the sum is 42.

The square root of 19895145 is about 4460.3974038195. The cubic root of 19895145 is about 270.9665631418.

The spelling of 19895145 in words is "nineteen million, eight hundred ninety-five thousand, one hundred forty-five".