38951121 has 64 divisors (see below), whose sum is σ = 64788480. Its totient is φ = 20528640.

The previous prime is 38951119. The next prime is 38951137. The reversal of 38951121 is 12115983.

It is not a de Polignac number, because 38951121 - 2¹ = 38951119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38951021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 533541 + ... + 533613.

It is an arithmetic number, because the mean of its divisors is an integer number (1012320).

Almost surely, 2^38951121 is an apocalyptic number.

It is an amenable number.

38951121 is a deficient number, since it is larger than the sum of its proper divisors (25837359).

38951121 is a wasteful number, since it uses less digits than its factorization.

38951121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166.

The product of its digits is 2160, while the sum is 30.

The square root of 38951121 is about 6241.0833194246. The cubic root of 38951121 is about 338.9794106934.

It can be divided in two parts, 38 and 951121, that added together give a palindrome (951159).

The spelling of 38951121 in words is "thirty-eight million, nine hundred fifty-one thousand, one hundred twenty-one".