6155641 has 2 divisors, whose sum is σ = 6155642. Its totient is φ = 6155640.

The previous prime is 6155621. The next prime is 6155687. The reversal of 6155641 is 1465516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5760000 + 395641 = 2400^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 6155641 - 2⁹ = 6155129 is a prime.

It is a super-2 number, since 2×6155641² = 75783832241762, which contains 22 as substring.

6155641 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6155621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077820 + 3077821.

It is an arithmetic number, because the mean of its divisors is an integer number (3077821).

Almost surely, 2^6155641 is an apocalyptic number.

It is an amenable number.

6155641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6155641 is an equidigital number, since it uses as much as digits as its factorization.

6155641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 6155641 is about 2481.0564282176. The cubic root of 6155641 is about 183.2698796015.

The spelling of 6155641 in words is "six million, one hundred fifty-five thousand, six hundred forty-one".