4545481 has 4 divisors (see below), whose sum is σ = 4613392. Its totient is φ = 4477572.

The previous prime is 4545479. The next prime is 4545509. The reversal of 4545481 is 1845454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4545481 - 2¹ = 4545479 is a prime.

It is a super-2 number, since 2×4545481² = 41322795042722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4545451) 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, 33855 + ... + 33988.

It is an arithmetic number, because the mean of its divisors is an integer number (1153348).

Almost surely, 2^4545481 is an apocalyptic number.

It is an amenable number.

4545481 is a deficient number, since it is larger than the sum of its proper divisors (67911).

4545481 is an equidigital number, since it uses as much as digits as its factorization.

4545481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67910.

The product of its digits is 12800, while the sum is 31.

The square root of 4545481 is about 2132.0133676879. The cubic root of 4545481 is about 165.6507025971.

The spelling of 4545481 in words is "four million, five hundred forty-five thousand, four hundred eighty-one".