628995145 has 16 divisors (see below), whose sum is σ = 806827392. Its totient is φ = 469575040.

The previous prime is 628995131. The next prime is 628995161. The reversal of 628995145 is 541599826.

It is not a de Polignac number, because 628995145 - 2⁹ = 628994633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61987 + ... + 71416.

It is an arithmetic number, because the mean of its divisors is an integer number (50426712).

Almost surely, 2^628995145 is an apocalyptic number.

It is an amenable number.

628995145 is a deficient number, since it is larger than the sum of its proper divisors (177832247).

628995145 is a wasteful number, since it uses less digits than its factorization.

628995145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133472.

The product of its digits is 777600, while the sum is 49.

The square root of 628995145 is about 25079.7756170186. The cubic root of 628995145 is about 856.8058658538.

The spelling of 628995145 in words is "six hundred twenty-eight million, nine hundred ninety-five thousand, one hundred forty-five".