1601497 has 4 divisors (see below), whose sum is σ = 1607440. Its totient is φ = 1595556.

The previous prime is 1601489. The next prime is 1601503. The reversal of 1601497 is 7941061.

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 1601497 - 2³ = 1601489 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1601447) 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, 2547 + ... + 3112.

It is an arithmetic number, because the mean of its divisors is an integer number (401860).

2^1601497 is an apocalyptic number.

It is an amenable number.

1601497 is a deficient number, since it is larger than the sum of its proper divisors (5943).

1601497 is an equidigital number, since it uses as much as digits as its factorization.

1601497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1601497 is about 1265.5026669273. The cubic root of 1601497 is about 116.9971752794.

The spelling of 1601497 in words is "one million, six hundred one thousand, four hundred ninety-seven".