1506961 has 4 divisors (see below), whose sum is σ = 1539072. Its totient is φ = 1474852.

The previous prime is 1506959. The next prime is 1506977. The reversal of 1506961 is 1696051.

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.

It is a cyclic number.

It is not a de Polignac number, because 1506961 - 2¹ = 1506959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1501961) 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, 15985 + ... + 16078.

It is an arithmetic number, because the mean of its divisors is an integer number (384768).

2^1506961 is an apocalyptic number.

It is an amenable number.

1506961 is a deficient number, since it is larger than the sum of its proper divisors (32111).

1506961 is an equidigital number, since it uses as much as digits as its factorization.

1506961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32110.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1506961 is about 1227.5833983889. The cubic root of 1506961 is about 114.6482256189.

The spelling of 1506961 in words is "one million, five hundred six thousand, nine hundred sixty-one".