4545155 has 4 divisors (see below), whose sum is σ = 5454192. Its totient is φ = 3636120.

The previous prime is 4545139. The next prime is 4545157. The reversal of 4545155 is 5515454.

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 4545155 - 2⁴ = 4545139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4545157) 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, 454511 + ... + 454520.

It is an arithmetic number, because the mean of its divisors is an integer number (1363548).

Almost surely, 2^4545155 is an apocalyptic number.

4545155 is a deficient number, since it is larger than the sum of its proper divisors (909037).

4545155 is an equidigital number, since it uses as much as digits as its factorization.

4545155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909036.

The product of its digits is 10000, while the sum is 29.

The square root of 4545155 is about 2131.9369127627. The cubic root of 4545155 is about 165.6467423693.

Subtracting 4545155 from its reverse (5515454), we obtain a cube (970299 = 99³).

The spelling of 4545155 in words is "four million, five hundred forty-five thousand, one hundred fifty-five".