621130 has 16 divisors (see below), whose sum is σ = 1127520. Its totient is φ = 246352.

The previous prime is 621113. The next prime is 621133. The reversal of 621130 is 31126.

621130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 621130.

It is not an unprimeable number, because it can be changed into a prime (621133) 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, 1617 + ... + 1963.

It is an arithmetic number, because the mean of its divisors is an integer number (70470).

2⁶²¹¹³⁰ is an apocalyptic number.

621130 is a deficient number, since it is larger than the sum of its proper divisors (506390).

621130 is a wasteful number, since it uses less digits than its factorization.

621130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 621130 is about 788.1180114678. The cubic root of 621130 is about 85.3219623249.

Adding to 621130 its reverse (31126), we get a palindrome (652256).

It can be divided in two parts, 6211 and 30, that added together give a square (6241 = 79²).

The spelling of 621130 in words is "six hundred twenty-one thousand, one hundred thirty".