197701381 has 8 divisors (see below), whose sum is σ = 216549720. Its totient is φ = 179655168.

The previous prime is 197701369. The next prime is 197701409. The reversal of 197701381 is 183107791.

197701381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 91508356 + 106193025 = 9566^2 + 10305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197701381 - 2⁵ = 197701349 is a prime.

It is a super-2 number, since 2×197701381² = 78171672098614322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197701381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197701321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200016 + ... + 201001.

It is an arithmetic number, because the mean of its divisors is an integer number (27068715).

Almost surely, 2^197701381 is an apocalyptic number.

It is an amenable number.

197701381 is a deficient number, since it is larger than the sum of its proper divisors (18848339).

197701381 is a wasteful number, since it uses less digits than its factorization.

197701381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401063.

The product of its (nonzero) digits is 10584, while the sum is 37.

The square root of 197701381 is about 14060.6323115285. The cubic root of 197701381 is about 582.5545084593.

The spelling of 197701381 in words is "one hundred ninety-seven million, seven hundred one thousand, three hundred eighty-one".