148636393 has 2 divisors, whose sum is σ = 148636394. Its totient is φ = 148636392.

The previous prime is 148636387. The next prime is 148636417. The reversal of 148636393 is 393636841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146967129 + 1669264 = 12123^2 + 1292^2 .

It is a cyclic number.

It is not a de Polignac number, because 148636393 - 2⁵ = 148636361 is a prime.

It is not a weakly prime, because it can be changed into another prime (148636333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74318196 + 74318197.

It is an arithmetic number, because the mean of its divisors is an integer number (74318197).

Almost surely, 2^148636393 is an apocalyptic number.

It is an amenable number.

148636393 is a deficient number, since it is larger than the sum of its proper divisors (1).

148636393 is an equidigital number, since it uses as much as digits as its factorization.

148636393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The square root of 148636393 is about 12191.6525951161. The cubic root of 148636393 is about 529.7143268836.

The spelling of 148636393 in words is "one hundred forty-eight million, six hundred thirty-six thousand, three hundred ninety-three".