147646 has 4 divisors (see below), whose sum is σ = 221472. Its totient is φ = 73822.

The previous prime is 147629. The next prime is 147647. The reversal of 147646 is 646741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646741 = 19 ⋅34039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36910 + ... + 36913.

It is an arithmetic number, because the mean of its divisors is an integer number (55368).

2¹⁴⁷⁶⁴⁶ is an apocalyptic number.

147646 is a deficient number, since it is larger than the sum of its proper divisors (73826).

147646 is an equidigital number, since it uses as much as digits as its factorization.

147646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73825.

The product of its digits is 4032, while the sum is 28.

The square root of 147646 is about 384.2473161910. The cubic root of 147646 is about 52.8535174389.

It can be divided in two parts, 1476 and 46, that multiplied together give a triangular number (67896 = T₃₆₈).

The spelling of 147646 in words is "one hundred forty-seven thousand, six hundred forty-six".