1041012561 has 16 divisors (see below), whose sum is σ = 1480248000. Its totient is φ = 648480768.

The previous prime is 1041012559. The next prime is 1041012563. The reversal of 1041012561 is 1652101401.

1041012561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1041012559) and next prime (1041012563).

It is not a de Polignac number, because 1041012561 - 2¹ = 1041012559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1041012563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66336 + ... + 80513.

It is an arithmetic number, because the mean of its divisors is an integer number (92515500).

Almost surely, 2^1041012561 is an apocalyptic number.

It is an amenable number.

1041012561 is a deficient number, since it is larger than the sum of its proper divisors (439235439).

1041012561 is a wasteful number, since it uses less digits than its factorization.

1041012561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147008.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1041012561 is about 32264.7262656915. The cubic root of 1041012561 is about 1013.4881066854.

Adding to 1041012561 its reverse (1652101401), we get a palindrome (2693113962).

The spelling of 1041012561 in words is "one billion, forty-one million, twelve thousand, five hundred sixty-one".