4121631 has 16 divisors (see below), whose sum is σ = 6138720. Its totient is φ = 2733120.

The previous prime is 4121629. The next prime is 4121641. The reversal of 4121631 is 1361214.

It is a happy number.

It is not a de Polignac number, because 4121631 - 2¹ = 4121629 is a prime.

It is a super-2 number, since 2×4121631² = 33975684200322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7651 + ... + 8171.

It is an arithmetic number, because the mean of its divisors is an integer number (383670).

Almost surely, 2^4121631 is an apocalyptic number.

4121631 is a deficient number, since it is larger than the sum of its proper divisors (2017089).

4121631 is a wasteful number, since it uses less digits than its factorization.

4121631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 817 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 4121631 is about 2030.1800412771. The cubic root of 4121631 is about 160.3330432618. Note that the first 3 decimals are identical.

Adding to 4121631 its reverse (1361214), we get a palindrome (5482845).

It can be divided in two parts, 412163 and 1, that added together give a square (412164 = 642²).

The spelling of 4121631 in words is "four million, one hundred twenty-one thousand, six hundred thirty-one".