5121534140 has 12 divisors (see below), whose sum is σ = 10755221736. Its totient is φ = 2048613648.

The previous prime is 5121534133. The next prime is 5121534169. The reversal of 5121534140 is 414351215.

It is a super-2 number, since 2×5121534140² = 52460223894371079200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128038334 + ... + 128038373.

It is an arithmetic number, because the mean of its divisors is an integer number (896268478).

Almost surely, 2^5121534140 is an apocalyptic number.

It is an amenable number.

5121534140 is an abundant number, since it is smaller than the sum of its proper divisors (5633687596).

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

5121534140 is a wasteful number, since it uses less digits than its factorization.

5121534140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256076716 (or 256076714 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 5121534140 is about 71564.8946062244. The cubic root of 5121534140 is about 1723.7198808989.

Adding to 5121534140 its reverse (414351215), we get a palindrome (5535885355).

The spelling of 5121534140 in words is "five billion, one hundred twenty-one million, five hundred thirty-four thousand, one hundred forty".