245629 has 2 divisors, whose sum is σ = 245630. Its totient is φ = 245628.

The previous prime is 245627. The next prime is 245639. The reversal of 245629 is 926542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235225 + 10404 = 485^2 + 102^2 .

It is a cyclic number.

It is not a de Polignac number, because 245629 - 2¹ = 245627 is a prime.

Together with 245627, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 245597 and 245606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122814 + 122815.

It is an arithmetic number, because the mean of its divisors is an integer number (122815).

2²⁴⁵⁶²⁹ is an apocalyptic number.

It is an amenable number.

245629 is a deficient number, since it is larger than the sum of its proper divisors (1).

245629 is an equidigital number, since it uses as much as digits as its factorization.

245629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 245629 is about 495.6097254897. The cubic root of 245629 is about 62.6267507741.

It can be divided in two parts, 2456 and 29, that added together give a triangular number (2485 = T₇₀).

The spelling of 245629 in words is "two hundred forty-five thousand, six hundred twenty-nine".