208196745 has 8 divisors (see below), whose sum is σ = 333114816. Its totient is φ = 111038256.

The previous prime is 208196741. The next prime is 208196749. The reversal of 208196745 is 547691802.

It is an interprime number because it is at equal distance from previous prime (208196741) and next prime (208196749).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 208196745 - 2² = 208196741 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 208196697 and 208196706.

It is not an unprimeable number, because it can be changed into a prime (208196741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6939877 + ... + 6939906.

It is an arithmetic number, because the mean of its divisors is an integer number (41639352).

Almost surely, 2^208196745 is an apocalyptic number.

It is an amenable number.

208196745 is a deficient number, since it is larger than the sum of its proper divisors (124918071).

208196745 is a wasteful number, since it uses less digits than its factorization.

208196745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13879791.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 208196745 is about 14429.0243952944. The cubic root of 208196745 is about 592.6859677241.

The spelling of 208196745 in words is "two hundred eight million, one hundred ninety-six thousand, seven hundred forty-five".