634042545 has 32 divisors (see below), whose sum is σ = 1055147520. Its totient is φ = 324829440.

The previous prime is 634042529. The next prime is 634042571. The reversal of 634042545 is 545240436.

634042545 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 634042545 - 2⁴ = 634042529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36615 + ... + 51075.

It is an arithmetic number, because the mean of its divisors is an integer number (32973360).

Almost surely, 2^634042545 is an apocalyptic number.

It is an amenable number.

634042545 is a deficient number, since it is larger than the sum of its proper divisors (421104975).

634042545 is a wasteful number, since it uses less digits than its factorization.

634042545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14585.

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 634042545 is about 25180.2014487573. The cubic root of 634042545 is about 859.0915885634.

The spelling of 634042545 in words is "six hundred thirty-four million, forty-two thousand, five hundred forty-five".