13132457 has 8 divisors (see below), whose sum is σ = 14181384. Its totient is φ = 12089088.

The previous prime is 13132417. The next prime is 13132487. The reversal of 13132457 is 75423131.

It can be written as a sum of positive squares in 4 ways, for example, as 143641 + 12988816 = 379^2 + 3604^2 .

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 13132457 - 2¹⁸ = 12870313 is a prime.

It is a super-2 number, since 2×13132457² = 344922853713698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13132417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4463 + ... + 6795.

It is an arithmetic number, because the mean of its divisors is an integer number (1772673).

Almost surely, 2^13132457 is an apocalyptic number.

It is an amenable number.

13132457 is a deficient number, since it is larger than the sum of its proper divisors (1048927).

13132457 is a wasteful number, since it uses less digits than its factorization.

13132457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779.

The product of its digits is 2520, while the sum is 26.

The square root of 13132457 is about 3623.8732041836. The cubic root of 13132457 is about 235.9293633760.

Adding to 13132457 its reverse (75423131), we get a palindrome (88555588).

The spelling of 13132457 in words is "thirteen million, one hundred thirty-two thousand, four hundred fifty-seven".