245939085 has 132 divisors (see below), whose sum is σ = 545255388. Its totient is φ = 105815808.

The previous prime is 245939077. The next prime is 245939093. The reversal of 245939085 is 580939542.

It is an interprime number because it is at equal distance from previous prime (245939077) and next prime (245939093).

It can be written as a sum of positive squares in 2 ways, for example, as 141776649 + 104162436 = 11907^2 + 10206^2 .

It is not a de Polignac number, because 245939085 - 2³ = 245939077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 245939085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 131 ways as a sum of consecutive naturals, for example, 14466997 + ... + 14467013.

Almost surely, 2^245939085 is an apocalyptic number.

It is an amenable number.

245939085 is an abundant number, since it is smaller than the sum of its proper divisors (299316303).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245939085 is an frugal number, since it uses more digits than its factorization.

245939085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 32 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 245939085 is about 15682.4451218552. The cubic root of 245939085 is about 626.5309327964.

The spelling of 245939085 in words is "two hundred forty-five million, nine hundred thirty-nine thousand, eighty-five".