635678145 has 32 divisors (see below), whose sum is σ = 1157667840. Its totient is φ = 330756480.

The previous prime is 635678137. The next prime is 635678171. The reversal of 635678145 is 541876536.

635678145 is a `hidden beast` number, since 6 + 3 + 567 + 81 + 4 + 5 = 666.

It is not a de Polignac number, because 635678145 - 2³ = 635678137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 635678145.

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, 51889 + ... + 62958.

It is an arithmetic number, because the mean of its divisors is an integer number (36177120).

Almost surely, 2^635678145 is an apocalyptic number.

It is an amenable number.

635678145 is a deficient number, since it is larger than the sum of its proper divisors (521989695).

635678145 is a wasteful number, since it uses less digits than its factorization.

635678145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114902 (or 114896 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 635678145 is about 25212.6584278612. The cubic root of 635678145 is about 859.8296692593.

The spelling of 635678145 in words is "six hundred thirty-five million, six hundred seventy-eight thousand, one hundred forty-five".