621063149 has 8 divisors (see below), whose sum is σ = 712100928. Its totient is φ = 530604000.

The previous prime is 621063137. The next prime is 621063173. The reversal of 621063149 is 941360126.

621063149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 621063149 - 2²⁰ = 620014573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621063119) 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, 142352 + ... + 146649.

It is an arithmetic number, because the mean of its divisors is an integer number (89012616).

Almost surely, 2^621063149 is an apocalyptic number.

It is an amenable number.

621063149 is a deficient number, since it is larger than the sum of its proper divisors (91037779).

621063149 is a wasteful number, since it uses less digits than its factorization.

621063149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289315.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 621063149 is about 24921.1385975842. The cubic root of 621063149 is about 853.1890120342.

The spelling of 621063149 in words is "six hundred twenty-one million, sixty-three thousand, one hundred forty-nine".