19139341 has 4 divisors (see below), whose sum is σ = 20611612. Its totient is φ = 17667072.

The previous prime is 19139303. The next prime is 19139347. The reversal of 19139341 is 14393191.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7209225 + 11930116 = 2685^2 + 3454^2 .

It is a cyclic number.

It is not a de Polignac number, because 19139341 - 2¹⁵ = 19106573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19139347) 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, 736116 + ... + 736141.

It is an arithmetic number, because the mean of its divisors is an integer number (5152903).

Almost surely, 2^19139341 is an apocalyptic number.

It is an amenable number.

19139341 is a deficient number, since it is larger than the sum of its proper divisors (1472271).

19139341 is a wasteful number, since it uses less digits than its factorization.

19139341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472270.

The product of its digits is 2916, while the sum is 31.

The square root of 19139341 is about 4374.8532546818. The cubic root of 19139341 is about 267.4908885591.

The spelling of 19139341 in words is "nineteen million, one hundred thirty-nine thousand, three hundred forty-one".