197700381 has 12 divisors (see below), whose sum is σ = 285822108. Its totient is φ = 131682624.

The previous prime is 197700359. The next prime is 197700403. The reversal of 197700381 is 183007791.

It is an interprime number because it is at equal distance from previous prime (197700359) and next prime (197700403).

It can be written as a sum of positive squares in 2 ways, for example, as 75951225 + 121749156 = 8715^2 + 11034^2 .

It is not a de Polignac number, because 197700381 - 2⁹ = 197699869 is a prime.

It is a super-2 number, since 2×197700381² = 78170881295090322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197705381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1531 + ... + 19943.

It is an arithmetic number, because the mean of its divisors is an integer number (23818509).

Almost surely, 2^197700381 is an apocalyptic number.

It is an amenable number.

197700381 is a deficient number, since it is larger than the sum of its proper divisors (88121727).

197700381 is a wasteful number, since it uses less digits than its factorization.

197700381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19612 (or 19609 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 197700381 is about 14060.5967512051. The cubic root of 197700381 is about 582.5535262448.

The spelling of 197700381 in words is "one hundred ninety-seven million, seven hundred thousand, three hundred eighty-one".