26121031 has 8 divisors (see below), whose sum is σ = 27316224. Its totient is φ = 24930840.

The previous prime is 26121023. The next prime is 26121047. The reversal of 26121031 is 13012162.

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 26121031 - 2³ = 26121023 is a prime.

It is a super-2 number, since 2×26121031² = 1364616521005922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26120996 and 26121014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26121091) 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 7 ways as a sum of consecutive naturals, for example, 13026 + ... + 14896.

It is an arithmetic number, because the mean of its divisors is an integer number (3414528).

Almost surely, 2^26121031 is an apocalyptic number.

26121031 is a deficient number, since it is larger than the sum of its proper divisors (1195193).

26121031 is a wasteful number, since it uses less digits than its factorization.

26121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 26121031 is about 5110.8738000463. The cubic root of 26121031 is about 296.7085798348.

Adding to 26121031 its reverse (13012162), we get a palindrome (39133193).

The spelling of 26121031 in words is "twenty-six million, one hundred twenty-one thousand, thirty-one".