190139616 has 144 divisors (see below), whose sum is σ = 575542800. Its totient is φ = 61067520.

The previous prime is 190139569. The next prime is 190139617. The reversal of 190139616 is 616931091.

190139616 is a `hidden beast` number, since 1 + 9 + 0 + 1 + 39 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190139617) 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 23 ways as a sum of consecutive naturals, for example, 830190 + ... + 830418.

It is an arithmetic number, because the mean of its divisors is an integer number (3996825).

Almost surely, 2^190139616 is an apocalyptic number.

190139616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190139616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287771400).

190139616 is an abundant number, since it is smaller than the sum of its proper divisors (385403184).

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

190139616 is a wasteful number, since it uses less digits than its factorization.

190139616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 190139616 is about 13789.1122266809. The cubic root of 190139616 is about 575.0304871044.

The spelling of 190139616 in words is "one hundred ninety million, one hundred thirty-nine thousand, six hundred sixteen".