628453161 has 96 divisors (see below), whose sum is σ = 1155667968. Its totient is φ = 333123840.

The previous prime is 628453157. The next prime is 628453187. The reversal of 628453161 is 161354826.

It is a happy number.

628453161 is a `hidden beast` number, since 62 + 8 + 4 + 531 + 61 = 666.

It is not a de Polignac number, because 628453161 - 2² = 628453157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (628453141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2978346 + ... + 2978556.

It is an arithmetic number, because the mean of its divisors is an integer number (12038208).

Almost surely, 2^628453161 is an apocalyptic number.

It is an amenable number.

628453161 is a deficient number, since it is larger than the sum of its proper divisors (527214807).

628453161 is a wasteful number, since it uses less digits than its factorization.

628453161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 341 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 628453161 is about 25068.9680880566. The cubic root of 628453161 is about 856.5597015197.

The spelling of 628453161 in words is "six hundred twenty-eight million, four hundred fifty-three thousand, one hundred sixty-one".