13146457 has 8 divisors (see below), whose sum is σ = 14077800. Its totient is φ = 12232704.

The previous prime is 13146451. The next prime is 13146479. The reversal of 13146457 is 75464131.

It can be written as a sum of positive squares in 4 ways, for example, as 4260096 + 8886361 = 2064^2 + 2981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13146457 - 2¹⁵ = 13113689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13146451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2832 + ... + 5857.

It is an arithmetic number, because the mean of its divisors is an integer number (1759725).

Almost surely, 2^13146457 is an apocalyptic number.

13146457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13146457 is a deficient number, since it is larger than the sum of its proper divisors (931343).

13146457 is an equidigital number, since it uses as much as digits as its factorization.

13146457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8795.

The product of its digits is 10080, while the sum is 31.

The square root of 13146457 is about 3625.8043245603. The cubic root of 13146457 is about 236.0131719642.

The spelling of 13146457 in words is "thirteen million, one hundred forty-six thousand, four hundred fifty-seven".