245259081 has 6 divisors (see below), whose sum is σ = 354263130. Its totient is φ = 163506048.

The previous prime is 245259071. The next prime is 245259121. The reversal of 245259081 is 180952542.

It can be written as a sum of positive squares in only one way, i.e., 241491600 + 3767481 = 15540^2 + 1941^2 .

It is not a de Polignac number, because 245259081 - 2⁷ = 245258953 is a prime.

It is a super-2 number, since 2×245259081² = 120304033625929122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245259031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13625496 + ... + 13625513.

It is an arithmetic number, because the mean of its divisors is an integer number (59043855).

Almost surely, 2^245259081 is an apocalyptic number.

It is an amenable number.

245259081 is a deficient number, since it is larger than the sum of its proper divisors (109004049).

245259081 is a wasteful number, since it uses less digits than its factorization.

245259081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27251015 (or 27251012 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 245259081 is about 15660.7496946985. The cubic root of 245259081 is about 625.9529620296.

The spelling of 245259081 in words is "two hundred forty-five million, two hundred fifty-nine thousand, eighty-one".