147696381 has 12 divisors (see below), whose sum is σ = 243816352. Its totient is φ = 84397896.

The previous prime is 147696377. The next prime is 147696383. The reversal of 147696381 is 183696741.

It is a happy number.

147696381 is a `hidden beast` number, since 1 + 4 + 7 + 6 + 9 + 638 + 1 = 666.

It is not a de Polignac number, because 147696381 - 2² = 147696377 is a prime.

It is a super-2 number, since 2×147696381² = 43628441920994322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147696383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1172131 + ... + 1172256.

Almost surely, 2^147696381 is an apocalyptic number.

It is an amenable number.

147696381 is a deficient number, since it is larger than the sum of its proper divisors (96119971).

147696381 is a wasteful number, since it uses less digits than its factorization.

147696381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344400 (or 2344397 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 147696381 is about 12153.0399900601. The cubic root of 147696381 is about 528.5952846132.

The spelling of 147696381 in words is "one hundred forty-seven million, six hundred ninety-six thousand, three hundred eighty-one".