6137661 has 8 divisors (see below), whose sum is σ = 8202304. Its totient is φ = 4082400.

The previous prime is 6137653. The next prime is 6137687. The reversal of 6137661 is 1667316.

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

It is not a de Polignac number, because 6137661 - 2³ = 6137653 is a prime.

It is a super-3 number, since 3×6137661³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6137641) 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, 640 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (1025288).

Almost surely, 2^6137661 is an apocalyptic number.

It is an amenable number.

6137661 is a deficient number, since it is larger than the sum of its proper divisors (2064643).

6137661 is a wasteful number, since it uses less digits than its factorization.

6137661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

The product of its digits is 4536, while the sum is 30.

The square root of 6137661 is about 2477.4303219263. The cubic root of 6137661 is about 183.0912680397.

The spelling of 6137661 in words is "six million, one hundred thirty-seven thousand, six hundred sixty-one".