7504122013 has 2 divisors, whose sum is σ = 7504122014. Its totient is φ = 7504122012.

The previous prime is 7504122001. The next prime is 7504122019. The reversal of 7504122013 is 3102214057.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7015402564 + 488719449 = 83758^2 + 22107^2 .

It is an emirp because it is prime and its reverse (3102214057) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7504122013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7504122019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3752061006 + 3752061007.

It is an arithmetic number, because the mean of its divisors is an integer number (3752061007).

Almost surely, 2^7504122013 is an apocalyptic number.

It is an amenable number.

7504122013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7504122013 is an equidigital number, since it uses as much as digits as its factorization.

7504122013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 7504122013 is about 86626.3355625759. The cubic root of 7504122013 is about 1957.7923579151.

The spelling of 7504122013 in words is "seven billion, five hundred four million, one hundred twenty-two thousand, thirteen".