26129169 has 16 divisors (see below), whose sum is σ = 42229440. Its totient is φ = 15835680.

The previous prime is 26129113. The next prime is 26129183. The reversal of 26129169 is 96192162.

It is not a de Polignac number, because 26129169 - 2¹¹ = 26127121 is a prime.

It is a super-2 number, since 2×26129169² = 1365466945261122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26129189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43692 + ... + 44285.

It is an arithmetic number, because the mean of its divisors is an integer number (2639340).

Almost surely, 2^26129169 is an apocalyptic number.

It is an amenable number.

26129169 is a deficient number, since it is larger than the sum of its proper divisors (16100271).

26129169 is a wasteful number, since it uses less digits than its factorization.

26129169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87997 (or 87991 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 26129169 is about 5111.6698837073. The cubic root of 26129169 is about 296.7393897941.

It can be divided in two parts, 2612 and 9169, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 26129169 in words is "twenty-six million, one hundred twenty-nine thousand, one hundred sixty-nine".