3162521 has 4 divisors (see below), whose sum is σ = 3236112. Its totient is φ = 3088932.

The previous prime is 3162517. The next prime is 3162529. The reversal of 3162521 is 1252613.

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: 1252613 = 19 ⋅65927.

It is a cyclic number.

It is not a de Polignac number, because 3162521 - 2² = 3162517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3162493 and 3162502.

It is not an unprimeable number, because it can be changed into a prime (3162529) 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, 36731 + ... + 36816.

It is an arithmetic number, because the mean of its divisors is an integer number (809028).

Almost surely, 2^3162521 is an apocalyptic number.

It is an amenable number.

3162521 is a deficient number, since it is larger than the sum of its proper divisors (73591).

3162521 is an equidigital number, since it uses as much as digits as its factorization.

3162521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73590.

The product of its digits is 360, while the sum is 20.

The square root of 3162521 is about 1778.3478287444. The cubic root of 3162521 is about 146.7836916105.

The spelling of 3162521 in words is "three million, one hundred sixty-two thousand, five hundred twenty-one".