1366501 has 4 divisors (see below), whose sum is σ = 1379872. Its totient is φ = 1353132.

The previous prime is 1366493. The next prime is 1366507. The reversal of 1366501 is 1056631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1056631 = 59 ⋅17909.

It is a cyclic number.

It is not a de Polignac number, because 1366501 - 2³ = 1366493 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 (1366507) 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, 6531 + ... + 6736.

It is an arithmetic number, because the mean of its divisors is an integer number (344968).

2^1366501 is an apocalyptic number.

It is an amenable number.

1366501 is a deficient number, since it is larger than the sum of its proper divisors (13371).

1366501 is a wasteful number, since it uses less digits than its factorization.

1366501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13370.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1366501 is about 1168.9743367585. The cubic root of 1366501 is about 110.9694204647.

The spelling of 1366501 in words is "one million, three hundred sixty-six thousand, five hundred one".