245783242 has 4 divisors (see below), whose sum is σ = 368674866. Its totient is φ = 122891620.

The previous prime is 245783137. The next prime is 245783261. The reversal of 245783242 is 242387542.

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., 194072761 + 51710481 = 13931^2 + 7191^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61445809 + ... + 61445812.

Almost surely, 2^245783242 is an apocalyptic number.

245783242 is a deficient number, since it is larger than the sum of its proper divisors (122891624).

245783242 is a wasteful number, since it uses less digits than its factorization.

245783242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122891623.

The product of its digits is 107520, while the sum is 37.

The square root of 245783242 is about 15677.4756258780. The cubic root of 245783242 is about 626.3985679181.

The spelling of 245783242 in words is "two hundred forty-five million, seven hundred eighty-three thousand, two hundred forty-two".