404148853 has 2 divisors, whose sum is σ = 404148854. Its totient is φ = 404148852.

The previous prime is 404148821. The next prime is 404148859. The reversal of 404148853 is 358841404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215443684 + 188705169 = 14678^2 + 13737^2 .

It is a cyclic number.

It is not a de Polignac number, because 404148853 - 2⁵ = 404148821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404148859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202074426 + 202074427.

It is an arithmetic number, because the mean of its divisors is an integer number (202074427).

Almost surely, 2^404148853 is an apocalyptic number.

It is an amenable number.

404148853 is a deficient number, since it is larger than the sum of its proper divisors (1).

404148853 is an equidigital number, since it uses as much as digits as its factorization.

404148853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 404148853 is about 20103.4537579989. The cubic root of 404148853 is about 739.3449602691.

The spelling of 404148853 in words is "four hundred four million, one hundred forty-eight thousand, eight hundred fifty-three".