245575749136 has 45 divisors (see below), whose sum is σ = 478774807623. Its totient is φ = 122025709440.

The previous prime is 245575749131. The next prime is 245575749137. The reversal of 245575749136 is 631947575542.

The square root of 245575749136 is 495556.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 40258014736 + 205317734400 = 200644^2 + 453120^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245575749131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 453929026 + ... + 453929566.

Almost surely, 2^245575749136 is an apocalyptic number.

245575749136 is the 495556-th square number.

It is an amenable number.

245575749136 is a deficient number, since it is larger than the sum of its proper divisors (233199058487).

245575749136 is an frugal number, since it uses more digits than its factorization.

245575749136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548 (or 772 counting only the distinct ones).

The product of its digits is 31752000, while the sum is 58.

The spelling of 245575749136 in words is "two hundred forty-five billion, five hundred seventy-five million, seven hundred forty-nine thousand, one hundred thirty-six".