245242135202 has 8 divisors (see below), whose sum is σ = 368294463516. Its totient is φ = 122477314032.

The previous prime is 245242135199. The next prime is 245242135241. The reversal of 245242135202 is 202531242542.

It can be written as a sum of positive squares in 2 ways, for example, as 206642067241 + 38600067961 = 454579^2 + 196469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71874653 + ... + 71878064.

Almost surely, 2^245242135202 is an apocalyptic number.

245242135202 is a deficient number, since it is larger than the sum of its proper divisors (123052328314).

245242135202 is a wasteful number, since it uses less digits than its factorization.

245242135202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143753572.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 245242135202 its reverse (202531242542), we get a palindrome (447773377744).

The spelling of 245242135202 in words is "two hundred forty-five billion, two hundred forty-two million, one hundred thirty-five thousand, two hundred two".