1601121335 has 8 divisors (see below), whose sum is σ = 2096013456. Its totient is φ = 1164451840.

The previous prime is 1601121323. The next prime is 1601121341. The reversal of 1601121335 is 5331211061.

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

It is not a de Polignac number, because 1601121335 - 2⁶ = 1601121271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601121335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14555594 + ... + 14555703.

It is an arithmetic number, because the mean of its divisors is an integer number (262001682).

Almost surely, 2^1601121335 is an apocalyptic number.

1601121335 is a deficient number, since it is larger than the sum of its proper divisors (494892121).

1601121335 is a wasteful number, since it uses less digits than its factorization.

1601121335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29111313.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1601121335 is about 40014.0142325161. The cubic root of 1601121335 is about 1169.8802650987.

Adding to 1601121335 its reverse (5331211061), we get a palindrome (6932332396).

The spelling of 1601121335 in words is "one billion, six hundred one million, one hundred twenty-one thousand, three hundred thirty-five".