6154641061 has 4 divisors (see below), whose sum is σ = 6154863532. Its totient is φ = 6154418592.

The previous prime is 6154641049. The next prime is 6154641133. The reversal of 6154641061 is 1601464516.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2332310436 + 3822330625 = 48294^2 + 61825^2 .

It is a cyclic number.

It is not a de Polignac number, because 6154641061 - 2¹⁷ = 6154509989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6154644061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62670 + ... + 127423.

It is an arithmetic number, because the mean of its divisors is an integer number (1538715883).

Almost surely, 2^6154641061 is an apocalyptic number.

It is an amenable number.

6154641061 is a deficient number, since it is larger than the sum of its proper divisors (222471).

6154641061 is a wasteful number, since it uses less digits than its factorization.

6154641061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222470.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 6154641061 is about 78451.5204505305. The cubic root of 6154641061 is about 1832.5995544558.

The spelling of 6154641061 in words is "six billion, one hundred fifty-four million, six hundred forty-one thousand, sixty-one".