26138121 has 8 divisors (see below), whose sum is σ = 35441760. Its totient is φ = 17129952.

The previous prime is 26138113. The next prime is 26138131. The reversal of 26138121 is 12183162.

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

It is not a de Polignac number, because 26138121 - 2³ = 26138113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26138091 and 26138100.

It is not an unprimeable number, because it can be changed into a prime (26138131) 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, 73660 + ... + 74013.

It is an arithmetic number, because the mean of its divisors is an integer number (4430220).

Almost surely, 2^26138121 is an apocalyptic number.

It is an amenable number.

26138121 is a deficient number, since it is larger than the sum of its proper divisors (9303639).

26138121 is a wasteful number, since it uses less digits than its factorization.

26138121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147735.

The product of its digits is 576, while the sum is 24.

The square root of 26138121 is about 5112.5454521207. The cubic root of 26138121 is about 296.7732741184.

The spelling of 26138121 in words is "twenty-six million, one hundred thirty-eight thousand, one hundred twenty-one".