5421545 has 4 divisors (see below), whose sum is σ = 6505860. Its totient is φ = 4337232.

The previous prime is 5421541. The next prime is 5421547. The reversal of 5421545 is 5451245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5451245 = 5 ⋅1090249.

It can be written as a sum of positive squares in 2 ways, for example, as 3636649 + 1784896 = 1907^2 + 1336^2 .

It is a cyclic number.

It is not a de Polignac number, because 5421545 - 2² = 5421541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5421541) 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 in 3 ways as a sum of consecutive naturals, for example, 542150 + ... + 542159.

It is an arithmetic number, because the mean of its divisors is an integer number (1626465).

Almost surely, 2^5421545 is an apocalyptic number.

It is an amenable number.

5421545 is a deficient number, since it is larger than the sum of its proper divisors (1084315).

5421545 is a wasteful number, since it uses less digits than its factorization.

5421545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084314.

The product of its digits is 4000, while the sum is 26.

The square root of 5421545 is about 2328.4211388836. The cubic root of 5421545 is about 175.6740804557.

The spelling of 5421545 in words is "five million, four hundred twenty-one thousand, five hundred forty-five".