147782213 has 4 divisors (see below), whose sum is σ = 147807660. Its totient is φ = 147756768.

The previous prime is 147782189. The next prime is 147782233. The reversal of 147782213 is 312287741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312287741 = 2311 ⋅135131.

It can be written as a sum of positive squares in 2 ways, for example, as 63473089 + 84309124 = 7967^2 + 9182^2 .

It is a cyclic number.

It is not a de Polignac number, because 147782213 - 2¹⁴ = 147765829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147782233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731 + ... + 17207.

It is an arithmetic number, because the mean of its divisors is an integer number (36951915).

Almost surely, 2^147782213 is an apocalyptic number.

It is an amenable number.

147782213 is a deficient number, since it is larger than the sum of its proper divisors (25447).

147782213 is an equidigital number, since it uses as much as digits as its factorization.

147782213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25446.

The product of its digits is 18816, while the sum is 35.

The square root of 147782213 is about 12156.5707746881. The cubic root of 147782213 is about 528.6976604110.

The spelling of 147782213 in words is "one hundred forty-seven million, seven hundred eighty-two thousand, two hundred thirteen".