7126491 has 4 divisors (see below), whose sum is σ = 9501992. Its totient is φ = 4750992.

The previous prime is 7126453. The next prime is 7126507. The reversal of 7126491 is 1946217.

It is a happy number.

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

It is not a de Polignac number, because 7126491 - 2⁷ = 7126363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7126291) 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, 1187746 + ... + 1187751.

It is an arithmetic number, because the mean of its divisors is an integer number (2375498).

Almost surely, 2^7126491 is an apocalyptic number.

7126491 is a deficient number, since it is larger than the sum of its proper divisors (2375501).

7126491 is a wasteful number, since it uses less digits than its factorization.

7126491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375500.

The product of its digits is 3024, while the sum is 30.

The square root of 7126491 is about 2669.5488382871. The cubic root of 7126491 is about 192.4384781193.

It can be divided in two parts, 71 and 26491, that added together give a palindrome (26562).

The spelling of 7126491 in words is "seven million, one hundred twenty-six thousand, four hundred ninety-one".