13540858 has 4 divisors (see below), whose sum is σ = 20311290. Its totient is φ = 6770428.

The previous prime is 13540817. The next prime is 13540871. The reversal of 13540858 is 85804531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85804531 = 4391 ⋅19541.

It can be written as a sum of positive squares in only one way, i.e., 6796449 + 6744409 = 2607^2 + 2597^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3385213 + ... + 3385216.

Almost surely, 2^13540858 is an apocalyptic number.

13540858 is a deficient number, since it is larger than the sum of its proper divisors (6770432).

13540858 is an equidigital number, since it uses as much as digits as its factorization.

13540858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770431.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 13540858 is about 3679.7904831661. The cubic root of 13540858 is about 238.3501307976.

The spelling of 13540858 in words is "thirteen million, five hundred forty thousand, eight hundred fifty-eight".