196154889 has 24 divisors (see below), whose sum is σ = 306289728. Its totient is φ = 111333600.

The previous prime is 196154873. The next prime is 196154953. The reversal of 196154889 is 988451691.

It is not a de Polignac number, because 196154889 - 2⁴ = 196154873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196154489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17779 + ... + 26615.

It is an arithmetic number, because the mean of its divisors is an integer number (12762072).

Almost surely, 2^196154889 is an apocalyptic number.

It is an amenable number.

196154889 is a deficient number, since it is larger than the sum of its proper divisors (110134839).

196154889 is a wasteful number, since it uses less digits than its factorization.

196154889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9005 (or 8998 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The square root of 196154889 is about 14005.5306575652. The cubic root of 196154889 is about 581.0315461654.

The spelling of 196154889 in words is "one hundred ninety-six million, one hundred fifty-four thousand, eight hundred eighty-nine".