1601455225 has 12 divisors (see below), whose sum is σ = 1986793596. Its totient is φ = 1280526080.

The previous prime is 1601455213. The next prime is 1601455237. The reversal of 1601455225 is 5225541061.

It is an interprime number because it is at equal distance from previous prime (1601455213) and next prime (1601455237).

It can be written as a sum of positive squares in 6 ways, for example, as 10163344 + 1591291881 = 3188^2 + 39891^2 .

It is not a de Polignac number, because 1601455225 - 2¹³ = 1601447033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38949 + ... + 68701.

It is an arithmetic number, because the mean of its divisors is an integer number (165566133).

Almost surely, 2^1601455225 is an apocalyptic number.

It is an amenable number.

1601455225 is a deficient number, since it is larger than the sum of its proper divisors (385338371).

1601455225 is a wasteful number, since it uses less digits than its factorization.

1601455225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31916 (or 31911 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1601455225 is about 40018.1861782865. The cubic root of 1601455225 is about 1169.9615798132.

Adding to 1601455225 its reverse (5225541061), we get a palindrome (6826996286).

The spelling of 1601455225 in words is "one billion, six hundred one million, four hundred fifty-five thousand, two hundred twenty-five".