245349 has 20 divisors (see below), whose sum is σ = 396396. Its totient is φ = 150336.

The previous prime is 245339. The next prime is 245383. The reversal of 245349 is 943542.

It can be written as a sum of positive squares in 2 ways, for example, as 42849 + 202500 = 207^2 + 450^2 .

It is not a de Polignac number, because 245349 - 2⁵ = 245317 is a prime.

It is a super-2 number, since 2×245349² = 120392263602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹⁷ + 4 + 3⁹ + 5⁷ + 4⁷ + 9² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245339) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 937 + ... + 1169.

2²⁴⁵³⁴⁹ is an apocalyptic number.

It is an amenable number.

245349 is a deficient number, since it is larger than the sum of its proper divisors (151047).

245349 is a wasteful number, since it uses less digits than its factorization.

245349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 249 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 245349 is about 495.3271646094. The cubic root of 245349 is about 62.6029450108.

The spelling of 245349 in words is "two hundred forty-five thousand, three hundred forty-nine".