1605246061 has 8 divisors (see below), whose sum is σ = 1729073664. Its totient is φ = 1485921360.

The previous prime is 1605246059. The next prime is 1605246079. The reversal of 1605246061 is 1606425061.

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 1605246061 - 2¹ = 1605246059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605246361) 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 7 ways as a sum of consecutive naturals, for example, 1124986 + ... + 1126411.

It is an arithmetic number, because the mean of its divisors is an integer number (216134208).

Almost surely, 2^1605246061 is an apocalyptic number.

It is an amenable number.

1605246061 is a deficient number, since it is larger than the sum of its proper divisors (123827603).

1605246061 is a wasteful number, since it uses less digits than its factorization.

1605246061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251451.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1605246061 is about 40065.5220981831. The cubic root of 1605246061 is about 1170.8839986867.

The spelling of 1605246061 in words is "one billion, six hundred five million, two hundred forty-six thousand, sixty-one".