1245513534 has 64 divisors (see below), whose sum is σ = 2675151360. Its totient is φ = 385228800.

The previous prime is 1245513497. The next prime is 1245513553. The reversal of 1245513534 is 4353155421.

It is a junction number, because it is equal to n+sod(n) for n = 1245513495 and 1245513504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2972377 + ... + 2972795.

It is an arithmetic number, because the mean of its divisors is an integer number (41799240).

Almost surely, 2^1245513534 is an apocalyptic number.

1245513534 is an abundant number, since it is smaller than the sum of its proper divisors (1429637826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245513534 is a wasteful number, since it uses less digits than its factorization.

1245513534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785.

The product of its digits is 36000, while the sum is 33.

The square root of 1245513534 is about 35291.8338146376. The cubic root of 1245513534 is about 1075.9270269929.

Adding to 1245513534 its reverse (4353155421), we get a palindrome (5598668955).

The spelling of 1245513534 in words is "one billion, two hundred forty-five million, five hundred thirteen thousand, five hundred thirty-four".