147946 has 4 divisors (see below), whose sum is σ = 221922. Its totient is φ = 73972.

The previous prime is 147937. The next prime is 147949. The reversal of 147946 is 649741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649741 = 541 ⋅1201.

It can be written as a sum of positive squares in only one way, i.e., 112225 + 35721 = 335^2 + 189^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (147949) by changing a digit.

147946 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36985 + ... + 36988.

2¹⁴⁷⁹⁴⁶ is an apocalyptic number.

147946 is a deficient number, since it is larger than the sum of its proper divisors (73976).

147946 is an equidigital number, since it uses as much as digits as its factorization.

147946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73975.

The product of its digits is 6048, while the sum is 31.

The square root of 147946 is about 384.6374916724. The cubic root of 147946 is about 52.8892906805.

The spelling of 147946 in words is "one hundred forty-seven thousand, nine hundred forty-six".