1366061 has 4 divisors (see below), whose sum is σ = 1381500. Its totient is φ = 1350624.

The previous prime is 1366031. The next prime is 1366087. The reversal of 1366061 is 1606631.

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 354025 + 1012036 = 595^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 1366061 - 2¹⁰ = 1365037 is a prime.

It is a super-2 number, since 2×1366061² = 3732245311442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366021) 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, 7586 + ... + 7763.

It is an arithmetic number, because the mean of its divisors is an integer number (345375).

2^1366061 is an apocalyptic number.

It is an amenable number.

1366061 is a deficient number, since it is larger than the sum of its proper divisors (15439).

1366061 is an equidigital number, since it uses as much as digits as its factorization.

1366061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15438.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1366061 is about 1168.7861224364. The cubic root of 1366061 is about 110.9575088290.

The spelling of 1366061 in words is "one million, three hundred sixty-six thousand, sixty-one".