624149 has 2 divisors, whose sum is σ = 624150. Its totient is φ = 624148.

The previous prime is 624139. The next prime is 624163. The reversal of 624149 is 941426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624100 + 49 = 790^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 624149 - 2⁴ = 624133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312074 + 312075.

It is an arithmetic number, because the mean of its divisors is an integer number (312075).

2⁶²⁴¹⁴⁹ is an apocalyptic number.

It is an amenable number.

624149 is a deficient number, since it is larger than the sum of its proper divisors (1).

624149 is an equidigital number, since it uses as much as digits as its factorization.

624149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 624149 is about 790.0310120495. The cubic root of 624149 is about 85.4599746540.

It can be divided in two parts, 6241 and 49, that multiplied together give a square (305809 = 553²).

The spelling of 624149 in words is "six hundred twenty-four thousand, one hundred forty-nine".