2013955481 has 4 divisors (see below), whose sum is σ = 2015272464. Its totient is φ = 2012638500.

The previous prime is 2013955469. The next prime is 2013955511. The reversal of 2013955481 is 1845593102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2013955481 - 2¹⁴ = 2013939097 is a prime.

It is a super-2 number, since 2×2013955481² = 8112033358899882722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013955081) 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 3 ways as a sum of consecutive naturals, for example, 656195 + ... + 659256.

It is an arithmetic number, because the mean of its divisors is an integer number (503818116).

Almost surely, 2^2013955481 is an apocalyptic number.

It is an amenable number.

2013955481 is a deficient number, since it is larger than the sum of its proper divisors (1316983).

2013955481 is a wasteful number, since it uses less digits than its factorization.

2013955481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316982.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 2013955481 is about 44877.1153373298. The cubic root of 2013955481 is about 1262.8447275603.

The spelling of 2013955481 in words is "two billion, thirteen million, nine hundred fifty-five thousand, four hundred eighty-one".