3531261 has 4 divisors (see below), whose sum is σ = 4708352. Its totient is φ = 2354172.

The previous prime is 3531247. The next prime is 3531271. The reversal of 3531261 is 1621353.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3531261 - 2⁶ = 3531197 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 5⁷ + 3¹³ + 1 + 2¹¹ + 6⁸ + 1 .

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3531211) 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, 588541 + ... + 588546.

It is an arithmetic number, because the mean of its divisors is an integer number (1177088).

Almost surely, 2^3531261 is an apocalyptic number.

It is an amenable number.

3531261 is a deficient number, since it is larger than the sum of its proper divisors (1177091).

3531261 is a wasteful number, since it uses less digits than its factorization.

3531261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177090.

The product of its digits is 540, while the sum is 21.

The square root of 3531261 is about 1879.1649741308. The cubic root of 3531261 is about 152.2801418425.

The spelling of 3531261 in words is "three million, five hundred thirty-one thousand, two hundred sixty-one".