13042791 has 12 divisors (see below), whose sum is σ = 19948032. Its totient is φ = 8183616.

The previous prime is 13042789. The next prime is 13042807. The reversal of 13042791 is 19724031.

13042791 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13042791 - 2¹ = 13042789 is a prime.

It is a super-2 number, since 2×13042791² = 340228794139362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13042751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42471 + ... + 42776.

It is an arithmetic number, because the mean of its divisors is an integer number (1662336).

Almost surely, 2^13042791 is an apocalyptic number.

13042791 is a deficient number, since it is larger than the sum of its proper divisors (6905241).

13042791 is a wasteful number, since it uses less digits than its factorization.

13042791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85270 (or 85267 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 13042791 is about 3611.4804443607. The cubic root of 13042791 is about 235.3911758688.

It can be divided in two parts, 1304 and 2791, that added together give a triangular number (4095 = T₉₀).

The spelling of 13042791 in words is "thirteen million, forty-two thousand, seven hundred ninety-one".