6161961 has 8 divisors (see below), whose sum is σ = 8848000. Its totient is φ = 3791952.

The previous prime is 6161959. The next prime is 6161993. The reversal of 6161961 is 1691616.

It is a happy number.

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

It is not a de Polignac number, because 6161961 - 2¹ = 6161959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6161941) 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, 78961 + ... + 79038.

It is an arithmetic number, because the mean of its divisors is an integer number (1106000).

Almost surely, 2^6161961 is an apocalyptic number.

It is an amenable number.

6161961 is a deficient number, since it is larger than the sum of its proper divisors (2686039).

6161961 is a wasteful number, since it uses less digits than its factorization.

6161961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158015.

The product of its digits is 1944, while the sum is 30.

The square root of 6161961 is about 2482.3297524704. The cubic root of 6161961 is about 183.3325792439.

The spelling of 6161961 in words is "six million, one hundred sixty-one thousand, nine hundred sixty-one".