4121534531 has 4 divisors (see below), whose sum is σ = 4124655864. Its totient is φ = 4118413200.

The previous prime is 4121534509. The next prime is 4121534533. The reversal of 4121534531 is 1354351214.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4121534531 - 2⁶ = 4121534467 is a prime.

It is a super-3 number, since 3×4121534531³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4121534494 and 4121534503.

It is not an unprimeable number, because it can be changed into a prime (4121534533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1558685 + ... + 1561326.

It is an arithmetic number, because the mean of its divisors is an integer number (1031163966).

Almost surely, 2^4121534531 is an apocalyptic number.

4121534531 is a deficient number, since it is larger than the sum of its proper divisors (3121333).

4121534531 is a wasteful number, since it uses less digits than its factorization.

4121534531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121332.

The product of its digits is 7200, while the sum is 29.

The square root of 4121534531 is about 64199.1785850878. The cubic root of 4121534531 is about 1603.3179235824.

Adding to 4121534531 its reverse (1354351214), we get a palindrome (5475885745).

The spelling of 4121534531 in words is "four billion, one hundred twenty-one million, five hundred thirty-four thousand, five hundred thirty-one".