19152091 has 8 divisors (see below), whose sum is σ = 22335200. Its totient is φ = 16415784.

The previous prime is 19152083. The next prime is 19152097. The reversal of 19152091 is 19025191.

It is not a de Polignac number, because 19152091 - 2³ = 19152083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19152097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27576 + ... + 28261.

It is an arithmetic number, because the mean of its divisors is an integer number (2791900).

Almost surely, 2^19152091 is an apocalyptic number.

19152091 is a deficient number, since it is larger than the sum of its proper divisors (3183109).

19152091 is an frugal number, since it uses more digits than its factorization.

19152091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55858 (or 55844 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 19152091 is about 4376.3102038133. The cubic root of 19152091 is about 267.5502732542.

The spelling of 19152091 in words is "nineteen million, one hundred fifty-two thousand, ninety-one".