628145254 has 8 divisors (see below), whose sum is σ = 1027874088. Its totient is φ = 285520560.

The previous prime is 628145239. The next prime is 628145261. The reversal of 628145254 is 452541826.

628145254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14276007 + ... + 14276050.

It is an arithmetic number, because the mean of its divisors is an integer number (128484261).

Almost surely, 2^628145254 is an apocalyptic number.

628145254 is a deficient number, since it is larger than the sum of its proper divisors (399728834).

628145254 is a wasteful number, since it uses less digits than its factorization.

628145254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28552070.

The product of its digits is 76800, while the sum is 37.

The square root of 628145254 is about 25062.8261375289. The cubic root of 628145254 is about 856.4197898397.

It can be divided in two parts, 62 and 8145254, that added together give a square (8145316 = 2854²).

The spelling of 628145254 in words is "six hundred twenty-eight million, one hundred forty-five thousand, two hundred fifty-four".