620135401 has 8 divisors (see below), whose sum is σ = 656847360. Its totient is φ = 583449408.

The previous prime is 620135381. The next prime is 620135419. The reversal of 620135401 is 104531026.

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 620135401 - 2⁷ = 620135273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620135491) 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, 65740 + ... + 74578.

It is an arithmetic number, because the mean of its divisors is an integer number (82105920).

Almost surely, 2^620135401 is an apocalyptic number.

It is an amenable number.

620135401 is a deficient number, since it is larger than the sum of its proper divisors (36711959).

620135401 is a wasteful number, since it uses less digits than its factorization.

620135401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12983.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 620135401 is about 24902.5179650573. The cubic root of 620135401 is about 852.7639672991.

Adding to 620135401 its reverse (104531026), we get a palindrome (724666427).

The spelling of 620135401 in words is "six hundred twenty million, one hundred thirty-five thousand, four hundred one".