19113157 has 16 divisors (see below), whose sum is σ = 22482432. Its totient is φ = 15911280.

The previous prime is 19113131. The next prime is 19113163. The reversal of 19113157 is 75131191.

It is not a de Polignac number, because 19113157 - 2¹¹ = 19111109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19113167) 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 15 ways as a sum of consecutive naturals, for example, 38682 + ... + 39172.

It is an arithmetic number, because the mean of its divisors is an integer number (1405152).

Almost surely, 2^19113157 is an apocalyptic number.

It is an amenable number.

19113157 is a deficient number, since it is larger than the sum of its proper divisors (3369275).

19113157 is an equidigital number, since it uses as much as digits as its factorization.

19113157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its digits is 945, while the sum is 28.

The square root of 19113157 is about 4371.8596729538. The cubic root of 19113157 is about 267.3688506088.

The spelling of 19113157 in words is "nineteen million, one hundred thirteen thousand, one hundred fifty-seven".