7513014121 has 4 divisors (see below), whose sum is σ = 7597430100. Its totient is φ = 7428598144.

The previous prime is 7513014109. The next prime is 7513014139. The reversal of 7513014121 is 1214103157.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2697348096 + 4815666025 = 51936^2 + 69395^2 .

It is a cyclic number.

It is not a de Polignac number, because 7513014121 - 2¹⁹ = 7512489833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7513014191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42207856 + ... + 42208033.

It is an arithmetic number, because the mean of its divisors is an integer number (1899357525).

Almost surely, 2^7513014121 is an apocalyptic number.

It is an amenable number.

7513014121 is a deficient number, since it is larger than the sum of its proper divisors (84415979).

7513014121 is an equidigital number, since it uses as much as digits as its factorization.

7513014121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84415978.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 7513014121 is about 86677.6448745581. The cubic root of 7513014121 is about 1958.5653565985.

Adding to 7513014121 its reverse (1214103157), we get a palindrome (8727117278).

The spelling of 7513014121 in words is "seven billion, five hundred thirteen million, fourteen thousand, one hundred twenty-one".