3731121 has 12 divisors (see below), whose sum is σ = 5466240. Its totient is φ = 2451960.

The previous prime is 3731107. The next prime is 3731137. The reversal of 3731121 is 1211373.

It is not a de Polignac number, because 3731121 - 2⁵ = 3731089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3731094 and 3731103.

It is not an unprimeable number, because it can be changed into a prime (3731141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2281 + ... + 3558.

It is an arithmetic number, because the mean of its divisors is an integer number (455520).

Almost surely, 2^3731121 is an apocalyptic number.

It is an amenable number.

3731121 is a deficient number, since it is larger than the sum of its proper divisors (1735119).

3731121 is a wasteful number, since it uses less digits than its factorization.

3731121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916 (or 5913 counting only the distinct ones).

The product of its digits is 126, while the sum is 18.

The square root of 3731121 is about 1931.6109856801. The cubic root of 3731121 is about 155.1004690290.

Adding to 3731121 its reverse (1211373), we get a palindrome (4942494).

The spelling of 3731121 in words is "three million, seven hundred thirty-one thousand, one hundred twenty-one".