7513139 has 2 divisors, whose sum is σ = 7513140. Its totient is φ = 7513138.

The previous prime is 7513123. The next prime is 7513141. The reversal of 7513139 is 9313157.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7513139 - 2⁴ = 7513123 is a prime.

It is a Sophie Germain prime.

Together with 7513141, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₅₀₉₀₆₉ and since 7513139 and 509069 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (7513199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3756569 + 3756570.

It is an arithmetic number, because the mean of its divisors is an integer number (3756570).

Almost surely, 2^7513139 is an apocalyptic number.

7513139 is a deficient number, since it is larger than the sum of its proper divisors (1).

7513139 is an equidigital number, since it uses as much as digits as its factorization.

7513139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835, while the sum is 29.

The square root of 7513139 is about 2741.0105800598. The cubic root of 7513139 is about 195.8576208095.

The spelling of 7513139 in words is "seven million, five hundred thirteen thousand, one hundred thirty-nine".