245450129 has 2 divisors, whose sum is σ = 245450130. Its totient is φ = 245450128.

The previous prime is 245450123. The next prime is 245450137. The reversal of 245450129 is 921054542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203718529 + 41731600 = 14273^2 + 6460^2 .

It is a cyclic number.

It is not a de Polignac number, because 245450129 - 2¹⁶ = 245384593 is a prime.

It is a super-2 number, since 2×245450129² = 120491531652233282, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 245450095 and 245450104.

It is not a weakly prime, because it can be changed into another prime (245450123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122725064 + 122725065.

It is an arithmetic number, because the mean of its divisors is an integer number (122725065).

Almost surely, 2^245450129 is an apocalyptic number.

It is an amenable number.

245450129 is a deficient number, since it is larger than the sum of its proper divisors (1).

245450129 is an equidigital number, since it uses as much as digits as its factorization.

245450129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 245450129 is about 15666.8480876020. The cubic root of 245450129 is about 626.1154514579.

The spelling of 245450129 in words is "two hundred forty-five million, four hundred fifty thousand, one hundred twenty-nine".