620361251 has 8 divisors (see below), whose sum is σ = 625254240. Its totient is φ = 615485952.

The previous prime is 620361149. The next prime is 620361253. The reversal of 620361251 is 152163026.

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 620361251 - 2¹⁰ = 620360227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620361251.

It is not an unprimeable number, because it can be changed into a prime (620361253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70946 + ... + 79208.

It is an arithmetic number, because the mean of its divisors is an integer number (78156780).

Almost surely, 2^620361251 is an apocalyptic number.

620361251 is a deficient number, since it is larger than the sum of its proper divisors (4892989).

620361251 is a wasteful number, since it uses less digits than its factorization.

620361251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8845.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 620361251 is about 24907.0522342569. The cubic root of 620361251 is about 852.8674787610.

The spelling of 620361251 in words is "six hundred twenty million, three hundred sixty-one thousand, two hundred fifty-one".