191485425 has 12 divisors (see below), whose sum is σ = 316589360. Its totient is φ = 102125520.

The previous prime is 191485361. The next prime is 191485453. The reversal of 191485425 is 524584191.

It is not a de Polignac number, because 191485425 - 2⁶ = 191485361 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1276495 + ... + 1276644.

Almost surely, 2^191485425 is an apocalyptic number.

191485425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

191485425 is a deficient number, since it is larger than the sum of its proper divisors (125103935).

191485425 is a wasteful number, since it uses less digits than its factorization.

191485425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553152 (or 2553147 counting only the distinct ones).

The product of its digits is 57600, while the sum is 39.

The square root of 191485425 is about 13837.8258769216. The cubic root of 191485425 is about 576.3839881478.

The spelling of 191485425 in words is "one hundred ninety-one million, four hundred eighty-five thousand, four hundred twenty-five".