147213851 has 4 divisors (see below), whose sum is σ = 147442032. Its totient is φ = 146985672.

The previous prime is 147213841. The next prime is 147213853. The reversal of 147213851 is 158312741.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 147213851 - 2¹⁰ = 147212827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147213853) 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, 113120 + ... + 114413.

It is an arithmetic number, because the mean of its divisors is an integer number (36860508).

Almost surely, 2^147213851 is an apocalyptic number.

147213851 is a deficient number, since it is larger than the sum of its proper divisors (228181).

147213851 is an equidigital number, since it uses as much as digits as its factorization.

147213851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228180.

The product of its digits is 6720, while the sum is 32.

The square root of 147213851 is about 12133.1715144887. The cubic root of 147213851 is about 528.0190092540.

The spelling of 147213851 in words is "one hundred forty-seven million, two hundred thirteen thousand, eight hundred fifty-one".