78025135 has 8 divisors (see below), whose sum is σ = 94023360. Its totient is φ = 62157984.

The previous prime is 78025133. The next prime is 78025159. The reversal of 78025135 is 53152087.

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

It is a cyclic number.

It is not a de Polignac number, because 78025135 - 2¹ = 78025133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78025097 and 78025106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78025133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31452 + ... + 33841.

It is an arithmetic number, because the mean of its divisors is an integer number (11752920).

Almost surely, 2^78025135 is an apocalyptic number.

78025135 is a deficient number, since it is larger than the sum of its proper divisors (15998225).

78025135 is a wasteful number, since it uses less digits than its factorization.

78025135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65537.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 78025135 is about 8833.1837408717. The cubic root of 78025135 is about 427.3117578033.

The spelling of 78025135 in words is "seventy-eight million, twenty-five thousand, one hundred thirty-five".