245242003154 has 4 divisors (see below), whose sum is σ = 367863004734. Its totient is φ = 122621001576.

The previous prime is 245242003151. The next prime is 245242003183. The reversal of 245242003154 is 451300242542.

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., 157819480225 + 87422522929 = 397265^2 + 295673^2 .

It is a super-3 number, since 3×245242003154³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 245242003154.

It is not an unprimeable number, because it can be changed into a prime (245242003151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61310500787 + ... + 61310500790.

Almost surely, 2^245242003154 is an apocalyptic number.

245242003154 is a deficient number, since it is larger than the sum of its proper divisors (122621001580).

245242003154 is a wasteful number, since it uses less digits than its factorization.

245242003154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122621001579.

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

Adding to 245242003154 its reverse (451300242542), we get a palindrome (696542245696).

The spelling of 245242003154 in words is "two hundred forty-five billion, two hundred forty-two million, three thousand, one hundred fifty-four".