191926485 has 24 divisors (see below), whose sum is σ = 334545120. Its totient is φ = 101784672.

The previous prime is 191926463. The next prime is 191926489. The reversal of 191926485 is 584629191.

It is not a de Polignac number, because 191926485 - 2¹⁵ = 191893717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 191926485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191926489) 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, 3859 + ... + 19968.

It is an arithmetic number, because the mean of its divisors is an integer number (13939380).

Almost surely, 2^191926485 is an apocalyptic number.

191926485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

191926485 is a deficient number, since it is larger than the sum of its proper divisors (142618635).

191926485 is a wasteful number, since it uses less digits than its factorization.

191926485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24017 (or 24014 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 191926485 is about 13853.7534625097. The cubic root of 191926485 is about 576.8261888783.

The spelling of 191926485 in words is "one hundred ninety-one million, nine hundred twenty-six thousand, four hundred eighty-five".