197431022 has 4 divisors (see below), whose sum is σ = 296146536. Its totient is φ = 98715510.

The previous prime is 197431007. The next prime is 197431037. The reversal of 197431022 is 220134791.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (197431007) and next prime (197431037).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49357754 + ... + 49357757.

It is an arithmetic number, because the mean of its divisors is an integer number (74036634).

Almost surely, 2^197431022 is an apocalyptic number.

197431022 is a deficient number, since it is larger than the sum of its proper divisors (98715514).

197431022 is an equidigital number, since it uses as much as digits as its factorization.

197431022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98715513.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 197431022 is about 14051.0149811321. The cubic root of 197431022 is about 582.2888372367.

The spelling of 197431022 in words is "one hundred ninety-seven million, four hundred thirty-one thousand, twenty-two".