147681851 has 12 divisors (see below), whose sum is σ = 156481272. Its totient is φ = 139355424.

The previous prime is 147681841. The next prime is 147681929. The reversal of 147681851 is 158186741.

It is not a de Polignac number, because 147681851 - 2¹⁸ = 147419707 is a prime.

It is a super-2 number, since 2×147681851² = 43619858229572402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147681799 and 147681808.

It is not an unprimeable number, because it can be changed into a prime (147681841) 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, 112340 + ... + 113646.

It is an arithmetic number, because the mean of its divisors is an integer number (13040106).

Almost surely, 2^147681851 is an apocalyptic number.

147681851 is a deficient number, since it is larger than the sum of its proper divisors (8799421).

147681851 is a wasteful number, since it uses less digits than its factorization.

147681851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1639 counting only the distinct ones).

The product of its digits is 53760, while the sum is 41.

The square root of 147681851 is about 12152.4421825409. The cubic root of 147681851 is about 528.5779500848.

The spelling of 147681851 in words is "one hundred forty-seven million, six hundred eighty-one thousand, eight hundred fifty-one".