26157 has 4 divisors (see below), whose sum is σ = 34880. Its totient is φ = 17436.

The previous prime is 26153. The next prime is 26161. The reversal of 26157 is 75162.

26157 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (26153) and next prime (26161).

It is not a de Polignac number, because 26157 - 2² = 26153 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 13 and base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4357 + ... + 4362.

It is an arithmetic number, because the mean of its divisors is an integer number (8720).

2²⁶¹⁵⁷ is an apocalyptic number.

It is an amenable number.

26157 is a deficient number, since it is larger than the sum of its proper divisors (8723).

26157 is an equidigital number, since it uses as much as digits as its factorization.

26157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722.

The product of its digits is 420, while the sum is 21.

The square root of 26157 is about 161.7312585742. The cubic root of 26157 is about 29.6844707897.

The spelling of 26157 in words is "twenty-six thousand, one hundred fifty-seven".