620135 has 8 divisors (see below), whose sum is σ = 754800. Its totient is φ = 489024.

The previous prime is 620117. The next prime is 620159. The reversal of 620135 is 531026.

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 620135 - 2¹⁰ = 619111 is a prime.

It is an Ulam number.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485 + ... + 1214.

It is an arithmetic number, because the mean of its divisors is an integer number (94350).

2⁶²⁰¹³⁵ is an apocalyptic number.

620135 is a deficient number, since it is larger than the sum of its proper divisors (134665).

620135 is a wasteful number, since it uses less digits than its factorization.

620135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 620135 is about 787.4865078209. The cubic root of 620135 is about 85.2763783491.

The spelling of 620135 in words is "six hundred twenty thousand, one hundred thirty-five".