13001955 has 16 divisors (see below), whose sum is σ = 20939424. Its totient is φ = 6888960.

The previous prime is 13001917. The next prime is 13001959. The reversal of 13001955 is 55910031.

13001955 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13001955 - 2⁷ = 13001827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13001959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406 + ... + 5115.

It is an arithmetic number, because the mean of its divisors is an integer number (1308714).

Almost surely, 2^13001955 is an apocalyptic number.

13001955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13001955 is a deficient number, since it is larger than the sum of its proper divisors (7937469).

13001955 is a wasteful number, since it uses less digits than its factorization.

13001955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 13001955 is about 3605.8223749930. The cubic root of 13001955 is about 235.1452550000.

Adding to 13001955 its reverse (55910031), we get a palindrome (68911986).

The spelling of 13001955 in words is "thirteen million, one thousand, nine hundred fifty-five".