398135053 has 8 divisors (see below), whose sum is σ = 422168760. Its totient is φ = 374169600.

The previous prime is 398135041. The next prime is 398135071. The reversal of 398135053 is 350531893.

It can be written as a sum of positive squares in 4 ways, for example, as 111239209 + 286895844 = 10547^2 + 16938^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398135053 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 (398135033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4788 + ... + 28621.

It is an arithmetic number, because the mean of its divisors is an integer number (52771095).

Almost surely, 2^398135053 is an apocalyptic number.

It is an amenable number.

398135053 is a deficient number, since it is larger than the sum of its proper divisors (24033707).

398135053 is a wasteful number, since it uses less digits than its factorization.

398135053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34127.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 398135053 is about 19953.3218537666. The cubic root of 398135053 is about 735.6594282498.

The spelling of 398135053 in words is "three hundred ninety-eight million, one hundred thirty-five thousand, fifty-three".