19135194 has 48 divisors (see below), whose sum is σ = 42057792. Its totient is φ = 5800704.

The previous prime is 19135189. The next prime is 19135199. The reversal of 19135194 is 49153191.

It is an interprime number because it is at equal distance from previous prime (19135189) and next prime (19135199).

It is not an unprimeable number, because it can be changed into a prime (19135199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114499 + ... + 114665.

It is an arithmetic number, because the mean of its divisors is an integer number (876204).

Almost surely, 2^19135194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19135194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21028896).

19135194 is an abundant number, since it is smaller than the sum of its proper divisors (22922598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19135194 is a wasteful number, since it uses less digits than its factorization.

19135194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 298 counting only the distinct ones).

The product of its digits is 4860, while the sum is 33.

The square root of 19135194 is about 4374.3792702508. The cubic root of 19135194 is about 267.4715677120.

The spelling of 19135194 in words is "nineteen million, one hundred thirty-five thousand, one hundred ninety-four".