38535121 has 4 divisors (see below), whose sum is σ = 39475044. Its totient is φ = 37595200.

The previous prime is 38535089. The next prime is 38535127. The reversal of 38535121 is 12153583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12153583 = 13 ⋅934891.

It can be written as a sum of positive squares in 2 ways, for example, as 540225 + 37994896 = 735^2 + 6164^2 .

It is a cyclic number.

It is not a de Polignac number, because 38535121 - 2⁵ = 38535089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38535121.

It is not an unprimeable number, because it can be changed into a prime (38535127) 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 3 ways as a sum of consecutive naturals, for example, 469900 + ... + 469981.

It is an arithmetic number, because the mean of its divisors is an integer number (9868761).

Almost surely, 2^38535121 is an apocalyptic number.

It is an amenable number.

38535121 is a deficient number, since it is larger than the sum of its proper divisors (939923).

38535121 is an equidigital number, since it uses as much as digits as its factorization.

38535121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939922.

The product of its digits is 3600, while the sum is 28.

The square root of 38535121 is about 6207.6663086864. Note that the first 3 decimals coincide. The cubic root of 38535121 is about 337.7683163043.

The spelling of 38535121 in words is "thirty-eight million, five hundred thirty-five thousand, one hundred twenty-one".