19201049 has 4 divisors (see below), whose sum is σ = 21944064. Its totient is φ = 16458036.

The previous prime is 19201037. The next prime is 19201057. The reversal of 19201049 is 94010291.

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 not a de Polignac number, because 19201049 - 2⁴ = 19201033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19201069) 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, 1371497 + ... + 1371510.

It is an arithmetic number, because the mean of its divisors is an integer number (5486016).

Almost surely, 2^19201049 is an apocalyptic number.

It is an amenable number.

19201049 is a deficient number, since it is larger than the sum of its proper divisors (2743015).

19201049 is an equidigital number, since it uses as much as digits as its factorization.

19201049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743014.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 19201049 is about 4381.9001586070. The cubic root of 19201049 is about 267.7780565771.

The spelling of 19201049 in words is "nineteen million, two hundred one thousand, forty-nine".