1016261 has 4 divisors (see below), whose sum is σ = 1022892. Its totient is φ = 1009632.

The previous prime is 1016237. The next prime is 1016263. The reversal of 1016261 is 1626101.

It is a happy number.

1016261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 240100 + 776161 = 490^2 + 881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016261 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 (1016263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3080 + ... + 3393.

It is an arithmetic number, because the mean of its divisors is an integer number (255723).

2^1016261 is an apocalyptic number.

It is an amenable number.

1016261 is a deficient number, since it is larger than the sum of its proper divisors (6631).

1016261 is an equidigital number, since it uses as much as digits as its factorization.

1016261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6630.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1016261 is about 1008.0977135179. The cubic root of 1016261 is about 100.5391215892.

The spelling of 1016261 in words is "one million, sixteen thousand, two hundred sixty-one".