245932989 has 4 divisors (see below), whose sum is σ = 327910656. Its totient is φ = 163955324.

The previous prime is 245932987. The next prime is 245932991. The reversal of 245932989 is 989239542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (245932987) and next prime (245932991).

It is a cyclic number.

It is not a de Polignac number, because 245932989 - 2¹ = 245932987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245932987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40988829 + ... + 40988834.

It is an arithmetic number, because the mean of its divisors is an integer number (81977664).

Almost surely, 2^245932989 is an apocalyptic number.

It is an amenable number.

245932989 is a deficient number, since it is larger than the sum of its proper divisors (81977667).

245932989 is an equidigital number, since it uses as much as digits as its factorization.

245932989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81977666.

The product of its digits is 1399680, while the sum is 51.

The square root of 245932989 is about 15682.2507632036. The cubic root of 245932989 is about 626.5257562245.

The spelling of 245932989 in words is "two hundred forty-five million, nine hundred thirty-two thousand, nine hundred eighty-nine".