19225641 has 8 divisors (see below), whose sum is σ = 25836544. Its totient is φ = 12715920.

The previous prime is 19225627. The next prime is 19225643. The reversal of 19225641 is 14652291.

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

It is not a de Polignac number, because 19225641 - 2¹³ = 19217449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19225599 and 19225608.

It is not an unprimeable number, because it can be changed into a prime (19225643) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 24850 + ... + 25611.

It is an arithmetic number, because the mean of its divisors is an integer number (3229568).

Almost surely, 2^19225641 is an apocalyptic number.

It is an amenable number.

19225641 is a deficient number, since it is larger than the sum of its proper divisors (6610903).

19225641 is a wasteful number, since it uses less digits than its factorization.

19225641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50591.

The product of its digits is 4320, while the sum is 30.

The square root of 19225641 is about 4384.7053492795. The cubic root of 19225641 is about 267.8923279138.

The spelling of 19225641 in words is "nineteen million, two hundred twenty-five thousand, six hundred forty-one".