148838213 has 4 divisors (see below), whose sum is σ = 157593420. Its totient is φ = 140083008.

The previous prime is 148838201. The next prime is 148838219. The reversal of 148838213 is 312838841.

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

It can be written as a sum of positive squares in 2 ways, for example, as 84309124 + 64529089 = 9182^2 + 8033^2 .

It is a cyclic number.

It is not a de Polignac number, because 148838213 - 2⁸ = 148837957 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 (148838219) 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, 4377578 + ... + 4377611.

It is an arithmetic number, because the mean of its divisors is an integer number (39398355).

Almost surely, 2^148838213 is an apocalyptic number.

It is an amenable number.

148838213 is a deficient number, since it is larger than the sum of its proper divisors (8755207).

148838213 is an equidigital number, since it uses as much as digits as its factorization.

148838213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755206.

The product of its digits is 36864, while the sum is 38.

The square root of 148838213 is about 12199.9267620753. The cubic root of 148838213 is about 529.9539689464.

The spelling of 148838213 in words is "one hundred forty-eight million, eight hundred thirty-eight thousand, two hundred thirteen".