196047981 has 12 divisors (see below), whose sum is σ = 285057760. Its totient is φ = 129832200.

The previous prime is 196047979. The next prime is 196047989. The reversal of 196047981 is 189740691.

It is a happy number.

It is not a de Polignac number, because 196047981 - 2¹ = 196047979 is a prime.

It is a super-2 number, since 2×196047981² = 76869621708352722, 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 (196047989) 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, 70771 + ... + 73488.

Almost surely, 2^196047981 is an apocalyptic number.

It is an amenable number.

196047981 is a deficient number, since it is larger than the sum of its proper divisors (89009779).

196047981 is a wasteful number, since it uses less digits than its factorization.

196047981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144416 (or 144413 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 196047981 is about 14001.7135022825. The cubic root of 196047981 is about 580.9259693782.

The spelling of 196047981 in words is "one hundred ninety-six million, forty-seven thousand, nine hundred eighty-one".