147946427 has 4 divisors (see below), whose sum is σ = 156649176. Its totient is φ = 139243680.

The previous prime is 147946423. The next prime is 147946433. The reversal of 147946427 is 724649741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724649741 = 59 ⋅12282199.

It is a cyclic number.

It is not a de Polignac number, because 147946427 - 2² = 147946423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147946423) 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 3 ways as a sum of consecutive naturals, for example, 4351349 + ... + 4351382.

It is an arithmetic number, because the mean of its divisors is an integer number (39162294).

Almost surely, 2^147946427 is an apocalyptic number.

147946427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

147946427 is a deficient number, since it is larger than the sum of its proper divisors (8702749).

147946427 is an equidigital number, since it uses as much as digits as its factorization.

147946427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8702748.

The product of its digits is 338688, while the sum is 44.

The square root of 147946427 is about 12163.3230245686. The cubic root of 147946427 is about 528.8934156331.

The spelling of 147946427 in words is "one hundred forty-seven million, nine hundred forty-six thousand, four hundred twenty-seven".