1506601 has 4 divisors (see below), whose sum is σ = 1518592. Its totient is φ = 1494612.

The previous prime is 1506587. The next prime is 1506607. The reversal of 1506601 is 1066051.

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: 1066051 = 7 ⋅152293.

It is a cyclic number.

It is not a de Polignac number, because 1506601 - 2⁷ = 1506473 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 (1506607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5805 + ... + 6058.

It is an arithmetic number, because the mean of its divisors is an integer number (379648).

2^1506601 is an apocalyptic number.

It is an amenable number.

1506601 is a deficient number, since it is larger than the sum of its proper divisors (11991).

1506601 is a wasteful number, since it uses less digits than its factorization.

1506601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11990.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1506601 is about 1227.4367600818. The cubic root of 1506601 is about 114.6390954007.

The spelling of 1506601 in words is "one million, five hundred six thousand, six hundred one".