1367561 has 8 divisors (see below), whose sum is σ = 1498560. Its totient is φ = 1240272.

The previous prime is 1367551. The next prime is 1367573. The reversal of 1367561 is 1657631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1367561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1367501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 1658.

It is an arithmetic number, because the mean of its divisors is an integer number (187320).

2^1367561 is an apocalyptic number.

It is an amenable number.

1367561 is a deficient number, since it is larger than the sum of its proper divisors (130999).

1367561 is a wasteful number, since it uses less digits than its factorization.

1367561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855.

The product of its digits is 3780, while the sum is 29.

The square root of 1367561 is about 1169.4276377784. The cubic root of 1367561 is about 110.9981061820.

The spelling of 1367561 in words is "one million, three hundred sixty-seven thousand, five hundred sixty-one".