19238157 has 12 divisors (see below), whose sum is σ = 28435264. Its totient is φ = 12526920.

The previous prime is 19238129. The next prime is 19238171. The reversal of 19238157 is 75183291.

It is not a de Polignac number, because 19238157 - 2¹⁹ = 18713869 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 (19238957) 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 11 ways as a sum of consecutive naturals, for example, 24469 + ... + 25242.

Almost surely, 2^19238157 is an apocalyptic number.

It is an amenable number.

19238157 is a deficient number, since it is larger than the sum of its proper divisors (9197107).

19238157 is a wasteful number, since it uses less digits than its factorization.

19238157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49760 (or 49757 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 19238157 is about 4386.1323509443. The cubic root of 19238157 is about 267.9504484388.

The spelling of 19238157 in words is "nineteen million, two hundred thirty-eight thousand, one hundred fifty-seven".