7507500139 has 4 divisors (see below), whose sum is σ = 7507812856. Its totient is φ = 7507187424.

The previous prime is 7507500137. The next prime is 7507500163. The reversal of 7507500139 is 9310057057.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7507500139 - 2¹ = 7507500137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7507500098 and 7507500107.

It is not an unprimeable number, because it can be changed into a prime (7507500131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117054 + ... + 169459.

It is an arithmetic number, because the mean of its divisors is an integer number (1876953214).

Almost surely, 2^7507500139 is an apocalyptic number.

7507500139 is a deficient number, since it is larger than the sum of its proper divisors (312717).

7507500139 is a wasteful number, since it uses less digits than its factorization.

7507500139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312716.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 7507500139 is about 86645.8316308407. The cubic root of 7507500139 is about 1958.0860932373.

The spelling of 7507500139 in words is "seven billion, five hundred seven million, five hundred thousand, one hundred thirty-nine".