197831049 has 16 divisors (see below), whose sum is σ = 284380992. Its totient is φ = 121606848.

The previous prime is 197831047. The next prime is 197831083. The reversal of 197831049 is 940138791.

It is a happy number.

197831049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197831049 - 2¹ = 197831047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197831049.

It is not an unprimeable number, because it can be changed into a prime (197831047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41539 + ... + 46055.

It is an arithmetic number, because the mean of its divisors is an integer number (17773812).

Almost surely, 2^197831049 is an apocalyptic number.

It is an amenable number.

197831049 is a deficient number, since it is larger than the sum of its proper divisors (86549943).

197831049 is a wasteful number, since it uses less digits than its factorization.

197831049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 197831049 is about 14065.2425858924. The cubic root of 197831049 is about 582.6818422002.

The spelling of 197831049 in words is "one hundred ninety-seven million, eight hundred thirty-one thousand, forty-nine".