196156645 has 16 divisors (see below), whose sum is σ = 239277312. Its totient is φ = 154353600.

The previous prime is 196156633. The next prime is 196156679. The reversal of 196156645 is 546651691.

It is not a de Polignac number, because 196156645 - 2⁷ = 196156517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81124 + ... + 83506.

It is an arithmetic number, because the mean of its divisors is an integer number (14954832).

Almost surely, 2^196156645 is an apocalyptic number.

It is an amenable number.

196156645 is a deficient number, since it is larger than the sum of its proper divisors (43120667).

196156645 is a wasteful number, since it uses less digits than its factorization.

196156645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652.

The product of its digits is 194400, while the sum is 43.

The square root of 196156645 is about 14005.5933469454. The cubic root of 196156645 is about 581.0332799795.

The spelling of 196156645 in words is "one hundred ninety-six million, one hundred fifty-six thousand, six hundred forty-five".