245787349 has 2 divisors, whose sum is σ = 245787350. Its totient is φ = 245787348.

The previous prime is 245787329. The next prime is 245787371. The reversal of 245787349 is 943787542.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241584849 + 4202500 = 15543^2 + 2050^2 .

It is a cyclic number.

It is not a de Polignac number, because 245787349 - 2¹⁵ = 245754581 is a prime.

It is a super-2 number, since 2×245787349² = 120822841856895602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245787329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122893674 + 122893675.

It is an arithmetic number, because the mean of its divisors is an integer number (122893675).

Almost surely, 2^245787349 is an apocalyptic number.

It is an amenable number.

245787349 is a deficient number, since it is larger than the sum of its proper divisors (1).

245787349 is an equidigital number, since it uses as much as digits as its factorization.

245787349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 49.

The square root of 245787349 is about 15677.6066094286. The cubic root of 245787349 is about 626.4020569064.

The spelling of 245787349 in words is "two hundred forty-five million, seven hundred eighty-seven thousand, three hundred forty-nine".