19243061 has 4 divisors (see below), whose sum is σ = 19273632. Its totient is φ = 19212492.

The previous prime is 19243051. The next prime is 19243073. The reversal of 19243061 is 16034291.

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-19243061 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 19243061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19243001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14321 + ... + 15606.

It is an arithmetic number, because the mean of its divisors is an integer number (4818408).

Almost surely, 2^19243061 is an apocalyptic number.

It is an amenable number.

19243061 is a deficient number, since it is larger than the sum of its proper divisors (30571).

19243061 is an equidigital number, since it uses as much as digits as its factorization.

19243061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30570.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 19243061 is about 4386.6913499812. The cubic root of 19243061 is about 267.9732142606.

The spelling of 19243061 in words is "nineteen million, two hundred forty-three thousand, sixty-one".