196339951 has 4 divisors (see below), whose sum is σ = 196472952. Its totient is φ = 196206952.

The previous prime is 196339943. The next prime is 196339993. The reversal of 196339951 is 159933691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 196339951 - 2³ = 196339943 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 (196339751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64261 + ... + 67246.

It is an arithmetic number, because the mean of its divisors is an integer number (49118238).

Almost surely, 2^196339951 is an apocalyptic number.

196339951 is a deficient number, since it is larger than the sum of its proper divisors (133001).

196339951 is a wasteful number, since it uses less digits than its factorization.

196339951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133000.

The product of its digits is 196830, while the sum is 46.

The square root of 196339951 is about 14012.1358471862. The cubic root of 196339951 is about 581.2142131434.

It can be divided in two parts, 19633 and 9951, that added together give a square (29584 = 172²).

The spelling of 196339951 in words is "one hundred ninety-six million, three hundred thirty-nine thousand, nine hundred fifty-one".