196625911 has 4 divisors (see below), whose sum is σ = 197712424. Its totient is φ = 195539400.

The previous prime is 196625903. The next prime is 196625917. The reversal of 196625911 is 119526691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119526691 = 463 ⋅258157.

It is a cyclic number.

It is not a de Polignac number, because 196625911 - 2³ = 196625903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196625917) 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 3 ways as a sum of consecutive naturals, for example, 542985 + ... + 543346.

It is an arithmetic number, because the mean of its divisors is an integer number (49428106).

Almost surely, 2^196625911 is an apocalyptic number.

196625911 is a deficient number, since it is larger than the sum of its proper divisors (1086513).

196625911 is a wasteful number, since it uses less digits than its factorization.

196625911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086512.

The product of its digits is 29160, while the sum is 40.

The square root of 196625911 is about 14022.3361463060. The cubic root of 196625911 is about 581.4962467477.

The spelling of 196625911 in words is "one hundred ninety-six million, six hundred twenty-five thousand, nine hundred eleven".