1656236041 has 8 divisors (see below), whose sum is σ = 1698064200. Its totient is φ = 1614476160.

The previous prime is 1656236017. The next prime is 1656236051. The reversal of 1656236041 is 1406326561.

It can be written as a sum of positive squares in 4 ways, for example, as 358723600 + 1297512441 = 18940^2 + 36021^2 .

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 1656236041 - 2²⁹ = 1119365129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1656235988 and 1656236006.

It is not an unprimeable number, because it can be changed into a prime (1656236011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33955 + ... + 66823.

It is an arithmetic number, because the mean of its divisors is an integer number (212258025).

Almost surely, 2^1656236041 is an apocalyptic number.

It is an amenable number.

1656236041 is a deficient number, since it is larger than the sum of its proper divisors (41828159).

1656236041 is a wasteful number, since it uses less digits than its factorization.

1656236041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34139.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1656236041 is about 40696.8799909772. The cubic root of 1656236041 is about 1183.1525488725.

The spelling of 1656236041 in words is "one billion, six hundred fifty-six million, two hundred thirty-six thousand, forty-one".