26161043 has 4 divisors (see below), whose sum is σ = 27537960. Its totient is φ = 24784128.

The previous prime is 26161033. The next prime is 26161049. The reversal of 26161043 is 34016162.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26161043 - 2⁴ = 26161027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26161049) 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, 688430 + ... + 688467.

It is an arithmetic number, because the mean of its divisors is an integer number (6884490).

Almost surely, 2^26161043 is an apocalyptic number.

26161043 is a deficient number, since it is larger than the sum of its proper divisors (1376917).

26161043 is a wasteful number, since it uses less digits than its factorization.

26161043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376916.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 26161043 is about 5114.7867013200. The cubic root of 26161043 is about 296.8600012072.

The spelling of 26161043 in words is "twenty-six million, one hundred sixty-one thousand, forty-three".