4201531 has 2 divisors, whose sum is σ = 4201532. Its totient is φ = 4201530.

The previous prime is 4201529. The next prime is 4201537. The reversal of 4201531 is 1351024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4201531 - 2¹ = 4201529 is a prime.

It is a super-2 number, since 2×4201531² = 35305725487922, which contains 22 as substring.

Together with 4201529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4201537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100765 + 2100766.

It is an arithmetic number, because the mean of its divisors is an integer number (2100766).

Almost surely, 2^4201531 is an apocalyptic number.

4201531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4201531 is an equidigital number, since it uses as much as digits as its factorization.

4201531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 4201531 is about 2049.7636449113. The cubic root of 4201531 is about 161.3624666594.

Adding to 4201531 its reverse (1351024), we get a palindrome (5552555).

The spelling of 4201531 in words is "four million, two hundred one thousand, five hundred thirty-one".