13501901 has 6 divisors (see below), whose sum is σ = 15706350. Its totient is φ = 11573016.

The previous prime is 13501883. The next prime is 13501919. The reversal of 13501901 is 10910531.

13501901 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13501883) and next prime (13501919).

It can be written as a sum of positive squares in only one way, i.e., 13147876 + 354025 = 3626^2 + 595^2 .

It is not a de Polignac number, because 13501901 - 2¹⁸ = 13239757 is a prime.

It is a super-2 number, since 2×13501901² = 364602661227602, which contains 22 as substring.

It is a Duffinian number.

13501901 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13501921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137726 + ... + 137823.

It is an arithmetic number, because the mean of its divisors is an integer number (2617725).

Almost surely, 2^13501901 is an apocalyptic number.

It is an amenable number.

13501901 is a deficient number, since it is larger than the sum of its proper divisors (2204449).

13501901 is an equidigital number, since it uses as much as digits as its factorization.

13501901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275563 (or 275556 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 13501901 is about 3674.4932984018. The cubic root of 13501901 is about 238.1213337499.

The spelling of 13501901 in words is "thirteen million, five hundred one thousand, nine hundred one".