622149 has 16 divisors (see below), whose sum is σ = 959040. Its totient is φ = 354560.

The previous prime is 622133. The next prime is 622151. The reversal of 622149 is 941226.

622149 = T₂₆₂ + T₂₆₃ + ... + T₂₇₈.

It is a cyclic number.

It is not a de Polignac number, because 622149 - 2⁴ = 622133 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (59940).

2⁶²²¹⁴⁹ is an apocalyptic number.

It is an amenable number.

622149 is a deficient number, since it is larger than the sum of its proper divisors (336891).

622149 is a wasteful number, since it uses less digits than its factorization.

622149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its digits is 864, while the sum is 24.

The square root of 622149 is about 788.7642233266. The cubic root of 622149 is about 85.3685953850.

It can be divided in two parts, 62 and 2149, that added together give a triangular number (2211 = T₆₆).

The spelling of 622149 in words is "six hundred twenty-two thousand, one hundred forty-nine".