620451122 has 4 divisors (see below), whose sum is σ = 930676686. Its totient is φ = 310225560.

The previous prime is 620451119. The next prime is 620451131. The reversal of 620451122 is 221154026.

It is a happy number.

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., 524822281 + 95628841 = 22909^2 + 9779^2 .

It is a super-3 number, since 3×620451122³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155112779 + ... + 155112782.

Almost surely, 2^620451122 is an apocalyptic number.

620451122 is a deficient number, since it is larger than the sum of its proper divisors (310225564).

620451122 is a wasteful number, since it uses less digits than its factorization.

620451122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310225563.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 620451122 is about 24908.8562965063. The cubic root of 620451122 is about 852.9086614064.

The spelling of 620451122 in words is "six hundred twenty million, four hundred fifty-one thousand, one hundred twenty-two".