1601024421 has 8 divisors (see below), whose sum is σ = 2135019744. Its totient is φ = 1067189360.

The previous prime is 1601024407. The next prime is 1601024423. The reversal of 1601024421 is 1244201061.

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 1601024421 - 2¹⁵ = 1600991653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601024423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14406 + ... + 58391.

It is an arithmetic number, because the mean of its divisors is an integer number (266877468).

Almost surely, 2^1601024421 is an apocalyptic number.

It is an amenable number.

1601024421 is a deficient number, since it is larger than the sum of its proper divisors (533995323).

1601024421 is an equidigital number, since it uses as much as digits as its factorization.

1601024421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80131.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1601024421 is about 40012.8032134716. The cubic root of 1601024421 is about 1169.8566607948.

Adding to 1601024421 its reverse (1244201061), we get a palindrome (2845225482).

The spelling of 1601024421 in words is "one billion, six hundred one million, twenty-four thousand, four hundred twenty-one".