620601131 has 8 divisors (see below), whose sum is σ = 651045600. Its totient is φ = 590759680.

The previous prime is 620601109. The next prime is 620601151. The reversal of 620601131 is 131106026.

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 620601131 - 2⁶ = 620601067 is a prime.

It is a super-2 number, since 2×620601131² = 770291527596958322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620601151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148646 + ... + 152763.

It is an arithmetic number, because the mean of its divisors is an integer number (81380700).

Almost surely, 2^620601131 is an apocalyptic number.

620601131 is a deficient number, since it is larger than the sum of its proper divisors (30444469).

620601131 is a wasteful number, since it uses less digits than its factorization.

620601131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301509.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 620601131 is about 24911.8672724467. The cubic root of 620601131 is about 852.9773929368.

Adding to 620601131 its reverse (131106026), we get a palindrome (751707157).

The spelling of 620601131 in words is "six hundred twenty million, six hundred one thousand, one hundred thirty-one".