10147681 has 4 divisors (see below), whose sum is σ = 10227712. Its totient is φ = 10067652.

The previous prime is 10147673. The next prime is 10147693. The reversal of 10147681 is 18674101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18674101 = 193 ⋅96757.

It is a cyclic number.

It is not a de Polignac number, because 10147681 - 2³ = 10147673 is a prime.

It is a super-2 number, since 2×10147681² = 205950859355522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10147481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39825 + ... + 40078.

It is an arithmetic number, because the mean of its divisors is an integer number (2556928).

Almost surely, 2^10147681 is an apocalyptic number.

It is an amenable number.

10147681 is a deficient number, since it is larger than the sum of its proper divisors (80031).

10147681 is an equidigital number, since it uses as much as digits as its factorization.

10147681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80030.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 10147681 is about 3185.5424969697. The cubic root of 10147681 is about 216.4988541489.

The spelling of 10147681 in words is "ten million, one hundred forty-seven thousand, six hundred eighty-one".