19132091 has 8 divisors (see below), whose sum is σ = 20913984. Its totient is φ = 17357320.

The previous prime is 19132073. The next prime is 19132093. The reversal of 19132091 is 19023191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19132091 - 2⁶ = 19132027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19132091.

It is not an unprimeable number, because it can be changed into a prime (19132093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4976 + ... + 7938.

It is an arithmetic number, because the mean of its divisors is an integer number (2614248).

Almost surely, 2^19132091 is an apocalyptic number.

19132091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

19132091 is a deficient number, since it is larger than the sum of its proper divisors (1781893).

19132091 is a wasteful number, since it uses less digits than its factorization.

19132091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 19132091 is about 4374.0245769771. The cubic root of 19132091 is about 267.4571090285.

Subtracting from 19132091 its reverse (19023191), we obtain a square (108900 = 330²).

It can be divided in two parts, 1913 and 2091, that added together give a palindrome (4004).

The spelling of 19132091 in words is "nineteen million, one hundred thirty-two thousand, ninety-one".