190911012 has 48 divisors (see below), whose sum is σ = 469963200. Its totient is φ = 60151680.

The previous prime is 190911011. The next prime is 190911053. The reversal of 190911012 is 210119091.

It is not an unprimeable number, because it can be changed into a prime (190911011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161062 + ... + 162242.

It is an arithmetic number, because the mean of its divisors is an integer number (9790900).

Almost surely, 2^190911012 is an apocalyptic number.

190911012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190911012 is an abundant number, since it is smaller than the sum of its proper divisors (279052188).

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

190911012 is a wasteful number, since it uses less digits than its factorization.

190911012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916 (or 1914 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

The square root of 190911012 is about 13817.0551131563. The cubic root of 190911012 is about 575.8070703203.

It can be divided in two parts, 1909 and 11012, that added together give a palindrome (12921).

The spelling of 190911012 in words is "one hundred ninety million, nine hundred eleven thousand, twelve".