7135131472 has 60 divisors (see below), whose sum is σ = 17027342100. Its totient is φ = 2878030848.

The previous prime is 7135131431. The next prime is 7135131473. The reversal of 7135131472 is 2741315317.

It can be written as a sum of positive squares in 2 ways, for example, as 4756033296 + 2379098176 = 68964^2 + 48776^2 .

It is a super-2 number, since 2×7135131472² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7135131473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254347 + ... + 281002.

It is an arithmetic number, because the mean of its divisors is an integer number (283789035).

Almost surely, 2^7135131472 is an apocalyptic number.

It is an amenable number.

7135131472 is an abundant number, since it is smaller than the sum of its proper divisors (9892210628).

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

7135131472 is a wasteful number, since it uses less digits than its factorization.

7135131472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535388 (or 535375 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 7135131472 is about 84469.7074222469. The cubic root of 7135131472 is about 1925.1622034120.

Adding to 7135131472 its reverse (2741315317), we get a palindrome (9876446789).

The spelling of 7135131472 in words is "seven billion, one hundred thirty-five million, one hundred thirty-one thousand, four hundred seventy-two".