3521149 has 4 divisors (see below), whose sum is σ = 3548160. Its totient is φ = 3494140.

The previous prime is 3521143. The next prime is 3521153. The reversal of 3521149 is 9411253.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9411253 = 2777 ⋅3389.

It is a cyclic number.

It is not a de Polignac number, because 3521149 - 2⁵ = 3521117 is a prime.

It is a Duffinian number.

3521149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521143) 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, 13309 + ... + 13570.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 2^3521149 is an apocalyptic number.

It is an amenable number.

3521149 is a deficient number, since it is larger than the sum of its proper divisors (27011).

3521149 is a wasteful number, since it uses less digits than its factorization.

3521149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27010.

The product of its digits is 1080, while the sum is 25.

The square root of 3521149 is about 1876.4724884741. The cubic root of 3521149 is about 152.1346481161.

The spelling of 3521149 in words is "three million, five hundred twenty-one thousand, one hundred forty-nine".