13400501 has 2 divisors, whose sum is σ = 13400502. Its totient is φ = 13400500.

The previous prime is 13400483. The next prime is 13400503. The reversal of 13400501 is 10500431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10923025 + 2477476 = 3305^2 + 1574^2 .

It is an emirp because it is prime and its reverse (10500431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13400501 - 2¹⁸ = 13138357 is a prime.

Together with 13400503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13400503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700250 + 6700251.

It is an arithmetic number, because the mean of its divisors is an integer number (6700251).

Almost surely, 2^13400501 is an apocalyptic number.

It is an amenable number.

13400501 is a deficient number, since it is larger than the sum of its proper divisors (1).

13400501 is an equidigital number, since it uses as much as digits as its factorization.

13400501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 13400501 is about 3660.6694742902. The cubic root of 13400501 is about 237.5237339162.

Adding to 13400501 its reverse (10500431), we get a palindrome (23900932).

The spelling of 13400501 in words is "thirteen million, four hundred thousand, five hundred one".