651390145 has 16 divisors (see below), whose sum is σ = 895477248. Its totient is φ = 445596480.

The previous prime is 651390133. The next prime is 651390191. The reversal of 651390145 is 541093156.

651390145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 651390145 - 2⁹ = 651389633 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 651390145.

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, 7369 + ... + 36838.

It is an arithmetic number, because the mean of its divisors is an integer number (55967328).

Almost surely, 2^651390145 is an apocalyptic number.

It is an amenable number.

651390145 is a deficient number, since it is larger than the sum of its proper divisors (244087103).

651390145 is a wasteful number, since it uses less digits than its factorization.

651390145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44640.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 651390145 is about 25522.3459932664. The cubic root of 651390145 is about 866.8562030399.

The spelling of 651390145 in words is "six hundred fifty-one million, three hundred ninety thousand, one hundred forty-five".