26123601 has 16 divisors (see below), whose sum is σ = 40779648. Its totient is φ = 14563200.

The previous prime is 26123599. The next prime is 26123609. The reversal of 26123601 is 10632162.

It is a happy number.

It is not a de Polignac number, because 26123601 - 2¹ = 26123599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (26123609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14310 + ... + 16031.

It is an arithmetic number, because the mean of its divisors is an integer number (2548728).

Almost surely, 2^26123601 is an apocalyptic number.

26123601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26123601 is a deficient number, since it is larger than the sum of its proper divisors (14656047).

26123601 is a wasteful number, since it uses less digits than its factorization.

26123601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30392.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 26123601 is about 5111.1252185796. The cubic root of 26123601 is about 296.7183103854.

Adding to 26123601 its reverse (10632162), we get a palindrome (36755763).

The spelling of 26123601 in words is "twenty-six million, one hundred twenty-three thousand, six hundred one".