3815061 has 4 divisors (see below), whose sum is σ = 5086752. Its totient is φ = 2543372.

The previous prime is 3815057. The next prime is 3815069. The reversal of 3815061 is 1605183.

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: 1605183 = 3 ⋅535061.

It is a cyclic number.

It is not a de Polignac number, because 3815061 - 2² = 3815057 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3815069) 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, 635841 + ... + 635846.

It is an arithmetic number, because the mean of its divisors is an integer number (1271688).

Almost surely, 2^3815061 is an apocalyptic number.

It is an amenable number.

3815061 is a deficient number, since it is larger than the sum of its proper divisors (1271691).

3815061 is a wasteful number, since it uses less digits than its factorization.

3815061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271690.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 3815061 is about 1953.2181137804. The cubic root of 3815061 is about 156.2549660288.

The spelling of 3815061 in words is "three million, eight hundred fifteen thousand, sixty-one".