196247381 has 4 divisors (see below), whose sum is σ = 214088064. Its totient is φ = 178406700.

The previous prime is 196247369. The next prime is 196247407. The reversal of 196247381 is 183742691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 196247381 - 2¹⁰ = 196246357 is a prime.

It is a super-2 number, since 2×196247381² = 77026069098718322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196247341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8920325 + ... + 8920346.

It is an arithmetic number, because the mean of its divisors is an integer number (53522016).

Almost surely, 2^196247381 is an apocalyptic number.

196247381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

196247381 is a deficient number, since it is larger than the sum of its proper divisors (17840683).

196247381 is a wasteful number, since it uses less digits than its factorization.

196247381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17840682.

The product of its digits is 72576, while the sum is 41.

The square root of 196247381 is about 14008.8322496916. The cubic root of 196247381 is about 581.1228555137.

The spelling of 196247381 in words is "one hundred ninety-six million, two hundred forty-seven thousand, three hundred eighty-one".