245434135522 has 4 divisors (see below), whose sum is σ = 368151203286. Its totient is φ = 122717067760.

The previous prime is 245434135517. The next prime is 245434135523. The reversal of 245434135522 is 225531434542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225531434542 = 2 ⋅112765717271.

It can be written as a sum of positive squares in only one way, i.e., 245063611521 + 370524001 = 495039^2 + 19249^2 .

It is not an unprimeable number, because it can be changed into a prime (245434135523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61358533879 + ... + 61358533882.

Almost surely, 2^245434135522 is an apocalyptic number.

245434135522 is a deficient number, since it is larger than the sum of its proper divisors (122717067764).

245434135522 is a wasteful number, since it uses less digits than its factorization.

245434135522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122717067763.

The product of its digits is 576000, while the sum is 40.

The spelling of 245434135522 in words is "two hundred forty-five billion, four hundred thirty-four million, one hundred thirty-five thousand, five hundred twenty-two".