620502151 has 4 divisors (see below), whose sum is σ = 624454552. Its totient is φ = 616549752.

The previous prime is 620502139. The next prime is 620502167. The reversal of 620502151 is 151205026.

620502151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620502151 - 2¹¹ = 620500103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620502451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1975965 + ... + 1976278.

It is an arithmetic number, because the mean of its divisors is an integer number (156113638).

Almost surely, 2^620502151 is an apocalyptic number.

620502151 is a deficient number, since it is larger than the sum of its proper divisors (3952401).

620502151 is a wasteful number, since it uses less digits than its factorization.

620502151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952400.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 620502151 is about 24909.8805898382. The cubic root of 620502151 is about 852.9320432552.

Adding to 620502151 its reverse (151205026), we get a palindrome (771707177).

The spelling of 620502151 in words is "six hundred twenty million, five hundred two thousand, one hundred fifty-one".