196542645 has 32 divisors (see below), whose sum is σ = 343322112. Its totient is φ = 95427072.

The previous prime is 196542641. The next prime is 196542649. The reversal of 196542645 is 546245691.

196542645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (196542641) and next prime (196542649).

It is not a de Polignac number, because 196542645 - 2² = 196542641 is a prime.

It is a super-2 number, since 2×196542645² = 77258022607192050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 196542597 and 196542606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196542641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7332 + ... + 21138.

It is an arithmetic number, because the mean of its divisors is an integer number (10728816).

Almost surely, 2^196542645 is an apocalyptic number.

196542645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196542645 is a deficient number, since it is larger than the sum of its proper divisors (146779467).

196542645 is a wasteful number, since it uses less digits than its factorization.

196542645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13901.

The product of its digits is 259200, while the sum is 42.

The square root of 196542645 is about 14019.3667831325. The cubic root of 196542645 is about 581.4141522727.

The spelling of 196542645 in words is "one hundred ninety-six million, five hundred forty-two thousand, six hundred forty-five".