1615441601 has 8 divisors (see below), whose sum is σ = 1647389184. Its totient is φ = 1583759520.

The previous prime is 1615441577. The next prime is 1615441613. The reversal of 1615441601 is 1061445161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1615441601 - 2³⁰ = 541699777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1615441621) 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 7 ways as a sum of consecutive naturals, for example, 54065 + ... + 78446.

It is an arithmetic number, because the mean of its divisors is an integer number (205923648).

Almost surely, 2^1615441601 is an apocalyptic number.

It is an amenable number.

1615441601 is a deficient number, since it is larger than the sum of its proper divisors (31947583).

1615441601 is a wasteful number, since it uses less digits than its factorization.

1615441601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132751.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1615441601 is about 40192.5565372495. The cubic root of 1615441601 is about 1173.3576816698.

Adding to 1615441601 its reverse (1061445161), we get a palindrome (2676886762).

The spelling of 1615441601 in words is "one billion, six hundred fifteen million, four hundred forty-one thousand, six hundred one".