620606122 has 4 divisors (see below), whose sum is σ = 930909186. Its totient is φ = 310303060.

The previous prime is 620606113. The next prime is 620606137. The reversal of 620606122 is 221606026.

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

It can be written as a sum of positive squares in only one way, i.e., 598242681 + 22363441 = 24459^2 + 4729^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 155151529 + ... + 155151532.

Almost surely, 2^620606122 is an apocalyptic number.

620606122 is a deficient number, since it is larger than the sum of its proper divisors (310303064).

620606122 is a wasteful number, since it uses less digits than its factorization.

620606122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310303063.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 620606122 is about 24911.9674453866. The cubic root of 620606122 is about 852.9796795364.

The spelling of 620606122 in words is "six hundred twenty million, six hundred six thousand, one hundred twenty-two".