7950139 has 2 divisors, whose sum is σ = 7950140. Its totient is φ = 7950138.

The previous prime is 7950127. The next prime is 7950143. The reversal of 7950139 is 9310597.

It is a strong prime.

It is an emirp because it is prime and its reverse (9310597) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7950139 - 2¹¹ = 7948091 is a prime.

It is an Ulam number.

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is not a weakly prime, because it can be changed into another prime (7950109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3975069 + 3975070.

It is an arithmetic number, because the mean of its divisors is an integer number (3975070).

Almost surely, 2^7950139 is an apocalyptic number.

7950139 is a deficient number, since it is larger than the sum of its proper divisors (1).

7950139 is an equidigital number, since it uses as much as digits as its factorization.

7950139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 7950139 is about 2819.5990849764. The cubic root of 7950139 is about 199.5836254293.

The spelling of 7950139 in words is "seven million, nine hundred fifty thousand, one hundred thirty-nine".