6161521 has 8 divisors (see below), whose sum is σ = 6408864. Its totient is φ = 5918880.

The previous prime is 6161509. The next prime is 6161527. The reversal of 6161521 is 1251616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6161521 - 2⁵ = 6161489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6161492 and 6161501.

It is not an unprimeable number, because it can be changed into a prime (6161527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1626 + ... + 3868.

It is an arithmetic number, because the mean of its divisors is an integer number (801108).

Almost surely, 2^6161521 is an apocalyptic number.

It is an amenable number.

6161521 is a deficient number, since it is larger than the sum of its proper divisors (247343).

6161521 is a wasteful number, since it uses less digits than its factorization.

6161521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351.

The product of its digits is 360, while the sum is 22.

The square root of 6161521 is about 2482.2411244680. The cubic root of 6161521 is about 183.3282154678.

The spelling of 6161521 in words is "six million, one hundred sixty-one thousand, five hundred twenty-one".