620149 has 8 divisors (see below), whose sum is σ = 659520. Its totient is φ = 581856.

The previous prime is 620117. The next prime is 620159. The reversal of 620149 is 941026.

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 620149 - 2⁵ = 620117 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 (620159) 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, 1129 + ... + 1585.

It is an arithmetic number, because the mean of its divisors is an integer number (82440).

2⁶²⁰¹⁴⁹ is an apocalyptic number.

It is an amenable number.

620149 is a deficient number, since it is larger than the sum of its proper divisors (39371).

620149 is a wasteful number, since it uses less digits than its factorization.

620149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 620149 is about 787.4953968119. The cubic root of 620149 is about 85.2770200697.

The spelling of 620149 in words is "six hundred twenty thousand, one hundred forty-nine".