245391298 has 4 divisors (see below), whose sum is σ = 368086950. Its totient is φ = 122695648.

The previous prime is 245391269. The next prime is 245391329. The reversal of 245391298 is 892193542.

245391298 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 152596609 + 92794689 = 12353^2 + 9633^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61347823 + ... + 61347826.

Almost surely, 2^245391298 is an apocalyptic number.

245391298 is a deficient number, since it is larger than the sum of its proper divisors (122695652).

245391298 is a wasteful number, since it uses less digits than its factorization.

245391298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122695651.

The product of its digits is 155520, while the sum is 43.

The square root of 245391298 is about 15664.9704117180. The cubic root of 245391298 is about 626.0654237236.

The spelling of 245391298 in words is "two hundred forty-five million, three hundred ninety-one thousand, two hundred ninety-eight".