1561067 has 8 divisors (see below), whose sum is σ = 1656192. Its totient is φ = 1468800.

The previous prime is 1561039. The next prime is 1561069. The reversal of 1561067 is 7601651.

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

It is a cyclic number.

It is not a de Polignac number, because 1561067 - 2⁶ = 1561003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1561069) 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, 467 + ... + 1827.

It is an arithmetic number, because the mean of its divisors is an integer number (207024).

2^1561067 is an apocalyptic number.

1561067 is a deficient number, since it is larger than the sum of its proper divisors (95125).

1561067 is a wasteful number, since it uses less digits than its factorization.

1561067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1561067 is about 1249.4266685164. The cubic root of 1561067 is about 116.0042358739.

The spelling of 1561067 in words is "one million, five hundred sixty-one thousand, sixty-seven".