13450531 has 2 divisors, whose sum is σ = 13450532. Its totient is φ = 13450530.

The previous prime is 13450517. The next prime is 13450571. The reversal of 13450531 is 13505431.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (13505431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13450531 - 2¹³ = 13442339 is a prime.

It is a super-2 number, since 2×13450531² = 361833568363922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13450511) 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 as a sum of consecutive naturals, namely, 6725265 + 6725266.

It is an arithmetic number, because the mean of its divisors is an integer number (6725266).

Almost surely, 2^13450531 is an apocalyptic number.

13450531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13450531 is an equidigital number, since it uses as much as digits as its factorization.

13450531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13450531 is about 3667.4965575989. The cubic root of 13450531 is about 237.8189605512.

Adding to 13450531 its reverse (13505431), we get a palindrome (26955962).

The spelling of 13450531 in words is "thirteen million, four hundred fifty thousand, five hundred thirty-one".