1601425 has 12 divisors (see below), whose sum is σ = 2269696. Its totient is φ = 1098000.

The previous prime is 1601423. The next prime is 1601441. The reversal of 1601425 is 5241061.

1601425 = T₃₈ + T₃₉ + ... + T₂₁₂.

It is not a de Polignac number, because 1601425 - 2¹ = 1601423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4401 + ... + 4750.

2^1601425 is an apocalyptic number.

It is an amenable number.

1601425 is a deficient number, since it is larger than the sum of its proper divisors (668271).

1601425 is an equidigital number, since it uses as much as digits as its factorization.

1601425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9168 (or 9163 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1601425 is about 1265.4742194134. The cubic root of 1601425 is about 116.9954219359.

Adding to 1601425 its reverse (5241061), we get a palindrome (6842486).

The spelling of 1601425 in words is "one million, six hundred one thousand, four hundred twenty-five".