26731142 has 4 divisors (see below), whose sum is σ = 40096716. Its totient is φ = 13365570.

The previous prime is 26731097. The next prime is 26731147. The reversal of 26731142 is 24113762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24113762 = 2 ⋅12056881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26731147) 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 as a sum of consecutive naturals, namely, 6682784 + ... + 6682787.

It is an arithmetic number, because the mean of its divisors is an integer number (10024179).

Almost surely, 2^26731142 is an apocalyptic number.

26731142 is a deficient number, since it is larger than the sum of its proper divisors (13365574).

26731142 is a wasteful number, since it uses less digits than its factorization.

26731142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13365573.

The product of its digits is 2016, while the sum is 26.

The square root of 26731142 is about 5170.2168233063. The cubic root of 26731142 is about 299.0009060274. Note that the first 3 decimals are identical.

The spelling of 26731142 in words is "twenty-six million, seven hundred thirty-one thousand, one hundred forty-two".