190263139 has 8 divisors (see below), whose sum is σ = 213169968. Its totient is φ = 168291360.

The previous prime is 190263127. The next prime is 190263187. The reversal of 190263139 is 931362091.

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 190263139 - 2¹¹ = 190261091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190263109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233332 + ... + 234145.

It is an arithmetic number, because the mean of its divisors is an integer number (26646246).

Almost surely, 2^190263139 is an apocalyptic number.

190263139 is a deficient number, since it is larger than the sum of its proper divisors (22906829).

190263139 is a wasteful number, since it uses less digits than its factorization.

190263139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467525.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 190263139 is about 13793.5905042886. The cubic root of 190263139 is about 575.1549817899.

The spelling of 190263139 in words is "one hundred ninety million, two hundred sixty-three thousand, one hundred thirty-nine".