1919091102 has 16 divisors (see below), whose sum is σ = 3876185232. Its totient is φ = 633363200.

The previous prime is 1919091079. The next prime is 1919091133. The reversal of 1919091102 is 2011909191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1582803 + ... + 1584014.

It is an arithmetic number, because the mean of its divisors is an integer number (242261577).

Almost surely, 2^1919091102 is an apocalyptic number.

1919091102 is an abundant number, since it is smaller than the sum of its proper divisors (1957094130).

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

1919091102 is a wasteful number, since it uses less digits than its factorization.

1919091102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166923.

The product of its (nonzero) digits is 1458, while the sum is 33.

The square root of 1919091102 is about 43807.4320406937. The cubic root of 1919091102 is about 1242.6968493840.

The spelling of 1919091102 in words is "one billion, nine hundred nineteen million, ninety-one thousand, one hundred two".