545451121 has 4 divisors (see below), whose sum is σ = 557056512. Its totient is φ = 533845732.

The previous prime is 545451097. The next prime is 545451131. The reversal of 545451121 is 121154545.

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 545451121 - 2¹³ = 545442929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545451121.

It is not an unprimeable number, because it can be changed into a prime (545451131) 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, 5802625 + ... + 5802718.

It is an arithmetic number, because the mean of its divisors is an integer number (139264128).

Almost surely, 2^545451121 is an apocalyptic number.

It is an amenable number.

545451121 is a deficient number, since it is larger than the sum of its proper divisors (11605391).

545451121 is a wasteful number, since it uses less digits than its factorization.

545451121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11605390.

The product of its digits is 4000, while the sum is 28.

The square root of 545451121 is about 23354.8950115388. The cubic root of 545451121 is about 817.0562307644.

The spelling of 545451121 in words is "five hundred forty-five million, four hundred fifty-one thousand, one hundred twenty-one".