5491345 has 4 divisors (see below), whose sum is σ = 6589620. Its totient is φ = 4393072.

The previous prime is 5491313. The next prime is 5491349. The reversal of 5491345 is 5431945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5431945 = 5 ⋅1086389.

It can be written as a sum of positive squares in 2 ways, for example, as 1181569 + 4309776 = 1087^2 + 2076^2 .

It is a cyclic number.

It is not a de Polignac number, because 5491345 - 2⁵ = 5491313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5491349) 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 3 ways as a sum of consecutive naturals, for example, 549130 + ... + 549139.

It is an arithmetic number, because the mean of its divisors is an integer number (1647405).

Almost surely, 2^5491345 is an apocalyptic number.

It is an amenable number.

5491345 is a deficient number, since it is larger than the sum of its proper divisors (1098275).

5491345 is a wasteful number, since it uses less digits than its factorization.

5491345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098274.

The product of its digits is 10800, while the sum is 31.

The square root of 5491345 is about 2343.3619012009. The cubic root of 5491345 is about 176.4247767468.

The spelling of 5491345 in words is "five million, four hundred ninety-one thousand, three hundred forty-five".