196523901 has 40 divisors (see below), whose sum is σ = 336902720. Its totient is φ = 111834432.

The previous prime is 196523869. The next prime is 196523917. The reversal of 196523901 is 109325691.

It is not a de Polignac number, because 196523901 - 2⁵ = 196523869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196523941) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 173505 + ... + 174633.

It is an arithmetic number, because the mean of its divisors is an integer number (8422568).

Almost surely, 2^196523901 is an apocalyptic number.

It is an amenable number.

196523901 is a deficient number, since it is larger than the sum of its proper divisors (140378819).

196523901 is a wasteful number, since it uses less digits than its factorization.

196523901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 196523901 is about 14018.6982633909. The cubic root of 196523901 is about 581.3956687974.

The spelling of 196523901 in words is "one hundred ninety-six million, five hundred twenty-three thousand, nine hundred one".